Merge branch 'release/v1.27.4'

Release v1.27.3

.chglog/CHANGELOG.tpl.md

@@ -1,47 +0,0 @@
-# Changelog
-
-Notable changes to Mailpit will be documented in this file.
-
-{{ if .Versions -}}
-{{ if .Unreleased.CommitGroups -}}
-## [Unreleased]
-
-{{ if .Unreleased.CommitGroups -}}
-{{ range .Unreleased.CommitGroups -}}
-### {{ .Title }}
-{{ range .Commits -}}
-- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
-{{ end }}
-{{ end }}
-{{ end -}}
-{{ end -}}
-{{ end -}}
-
-{{ range .Versions }} 
-{{- if .CommitGroups -}}
-## [{{ .Tag.Name }}]
-
-{{ if .NoteGroups -}}
-{{ range .NoteGroups -}}
-### {{ .Title }}
-{{ range .Notes }}
-{{ .Body }}
-{{ end -}}
-{{ end }}
-{{ end -}}
-{{ end -}}
-
-{{ range .CommitGroups -}}
-### {{ .Title }}
-{{ range .Commits -}}
-- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
-{{ end }}
-{{ end }}
-
-{{- if .MergeCommits -}}
-### Pull Requests
-{{ range .MergeCommits -}}
-- {{ .Header }}
-{{ end }}
-{{ end }}
-{{ end -}}

.chglog/RELEASE.tpl.md

@@ -1,12 +0,0 @@
-{{ if .Versions -}}
-{{ range .Versions }} 
-{{- if .CommitGroups -}}
-{{ range .CommitGroups -}}
-### {{ .Title }}
-{{ range .Commits -}}
-- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
-{{ end }}
-{{ end -}}
-{{ end -}}
-{{ end -}}
-{{ end -}}

.chglog/config.yml

@@ -1,46 +0,0 @@
-style: github
-template: CHANGELOG.tpl.md
-info:
-  title: CHANGELOG
-  repository_url: https://github.com/axllent/mailpit
-options:
-  commits:
-    # filters:
-    #   Type:
-    #     - feat
-    #     - fix
-    #     - perf
-    #     - refactor
-  commit_groups:
-    title_maps:
-      feature: Feature
-      fix: Fix
-    #   perf: Performance Improvements
-    #   refactor: Code Refactoring
-    sort_by: Custom
-    title_order:
-      - Feature
-      - Chore
-      - UI
-      - API
-      - Libs
-      - Docker
-      - Security
-      - Fix
-      - Bugfix
-      - Docs
-      - Swagger
-      - Build
-      - Testing
-      - Test
-      - Tests
-      - Pull Requests
-  header:
-    pattern: "^(\\w*)(?:\\(([\\w\\$\\.\\-\\*\\s]*)\\))?\\:\\s(.*)$"
-    pattern_maps:
-      - Type
-      - Scope
-      - Subject
-  notes:
-    keywords:
-      - BREAKING CHANGE

.github/cliff.toml

@@ -0,0 +1,48 @@
+## https://git-cliff.org/
+[changelog]
+body = """
+{% if version %}\
+  \n## [{{ version }}]
+{% else %}\
+  \n## Unreleased
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+  ### {{ group | striptags | trim | upper_first }}\
+  {% for commit in commits %}
+    - {{ commit.message | upper_first }}\
+  {% endfor %}
+{% endfor %}\n
+"""
+footer = ""
+header = "# Changelog\n\nNotable changes to Mailpit will be documented in this file."
+postprocessors = [
+  {pattern = "reponse", replace = "response"},
+  {pattern = "messsage", replace = "message"},
+  {pattern = '(?i) go modules', replace = " Go dependencies"},
+  {pattern = '(?i) node modules', replace = " node dependencies"},
+  {pattern = '#([0-9]+)', replace = "[#$1](https://github.com/axllent/mailpit/issues/$1)"},
+]
+trim = true
+
+[git]
+# HTML comments added for grouping order, stripped on generation
+commit_parsers = [
+  {body = ".*security", group = "<!-- 1 -->Security"},
+  {message = "(?i)^feat", group = "<!-- 2 -->Feature"},
+  {message = "(?i)^chore", group = "<!-- 3 -->Chore"},
+  {message = "(?i)^libs", group = "<!-- 3 -->Chore"},
+  {message = "(?i)^ui", group = "<!-- 3 -->Chore"},
+  {message = "(?i)^api", group = "<!-- 4 -->API"},
+  {message = "(?i)^fix", group = "<!-- 5 -->Fix"},
+  {message = "(?i)^doc", group = "<!-- 6 -->Documentation", default_scope = "unscoped"},
+  {message = "(?i)^swagger", group = "<!-- 6 -->Documentation", default_scope = "unscoped"},
+  {message = "(?i)^test", group = "<!-- 7 -->Test"},
+]
+
+# Exclude commits that are not matched by any commit parser.
+# filter_commits = true
+# Order releases topologically instead of chronologically.
+# topo_order = true
+# Order of commits in each group/release within the changelog.
+# Allowed values: newest, oldest
+sort_commits = "oldest"

.github/dependabot.yml

@@ -8,16 +8,16 @@ updates:
   - package-ecosystem: "gomod"
     directory: "/" # Location of package manifests
     schedule:
-      interval: "monthly"
+      interval: "quarterly"
   - package-ecosystem: "github-actions"
     directory: "/" # Location of package manifests
     schedule:
-      interval: "monthly"
+      interval: "quarterly"
   - package-ecosystem: "docker"
     directory: "/" # Location of package manifests
     schedule:
-      interval: "monthly"
+      interval: "quarterly"
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
-      interval: "monthly"
+      interval: "quarterly"

.github/workflows/build-docker.yml

@@ -48,6 +48,6 @@ jobs:
           axllent/mailpit:latest
           axllent/mailpit:${{ github.ref_name }}
           axllent/mailpit:v${{ steps.semver_parser.outputs.major }}.${{ steps.semver_parser.outputs.minor }}
-          ghcr.io/${{ github.repository }}:latest
           ghcr.io/${{ github.repository }}:${{ github.ref_name }}
           ghcr.io/${{ github.repository }}:v${{ steps.semver_parser.outputs.major }}.${{ steps.semver_parser.outputs.minor }}
+          ghcr.io/${{ github.repository }}:latest

.github/workflows/close-stale-issues.yml

@@ -10,7 +10,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/stale@v9.0.0
+      - uses: actions/stale@v9.1.0
         with:
           days-before-issue-stale: 7
           days-before-issue-close: 3

.github/workflows/release-build.yml

@@ -26,7 +26,7 @@ jobs:
     # build the assets
     - uses: actions/setup-node@v4
       with:
-        node-version: 18
+        node-version: 22
         cache: 'npm'
     - run: echo "Building assets for ${{ github.ref_name }}"
     - run: npm install

.github/workflows/tests-rqlite.yml

@@ -0,0 +1,29 @@
+name: Tests (rqlite)
+on:
+  pull_request:
+    branches: [ develop, 'feature/**' ]
+  push:
+    branches: [ develop, 'feature/**' ]
+
+jobs:
+  test-rqlite:
+    runs-on: ubuntu-latest
+    services:
+      rqlite:
+        image: rqlite/rqlite:latest
+        ports:
+          - 4001:4001
+        env:
+          # the HTTP address the rqlite node should advertise
+          HTTP_ADV_ADDR: "localhost:4001"
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
+          cache-dependency-path: "**/*.sum"
+      - run: go test -p 1 ./internal/storage ./server ./internal/smtpd ./internal/pop3 ./internal/tools ./internal/html2text ./internal/htmlcheck ./internal/linkcheck -v
+        env:
+          # set Mailpit to use the rqlite service container
+          MP_DATABASE: "http://localhost:4001"

.github/workflows/tests.yml

@@ -8,7 +8,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.21.x]
+        go-version: [stable]
         os: [ubuntu-latest, windows-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
@@ -17,7 +17,7 @@ jobs:
         go-version: ${{ matrix.go-version }}
         cache: false
     - uses: actions/checkout@v4
-    - name: Run Go tests
+    - name: Set up Go environment
       uses: actions/cache@v4
       with:
         path: |
@@ -26,19 +26,30 @@ jobs:
         key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
         restore-keys: |
           ${{ runner.os }}-go-
-    - run: go test -p 1 ./internal/storage ./server ./server/pop3 ./internal/tools ./internal/html2text ./internal/linkcheck -v
-    - run: go test -p 1 ./internal/storage ./internal/html2text -bench=.
+    - name: Test Go linting (gofmt)
+      if: startsWith(matrix.os, 'ubuntu') == true
+      # https://olegk.dev/github-actions-and-go
+      run: gofmt -s -w . && git diff --exit-code
+    - name: Run Go tests
+      run: go test -p 1 ./internal/storage ./server ./internal/smtpd ./internal/pop3 ./internal/tools ./internal/html2text ./internal/htmlcheck ./internal/linkcheck -v
+    - name: Run Go benchmarking
+      run: go test -p 1 ./internal/storage ./internal/html2text -bench=.
     
     # build the assets
-    - name: Build web UI
+    - name: Set up node environment
       if: startsWith(matrix.os, 'ubuntu') == true
       uses: actions/setup-node@v4
       with:
-        node-version: 18
+        node-version: 22
         cache: 'npm'
-    - if: startsWith(matrix.os, 'ubuntu') == true
+    - name: Install JavaScript dependencies
+      if: startsWith(matrix.os, 'ubuntu') == true
       run: npm install
-    - if: startsWith(matrix.os, 'ubuntu') == true
+    - name: Run JavaScript linting
+      if: startsWith(matrix.os, 'ubuntu') == true
+      run: npm run lint
+    - name: Test JavaScript packaging
+      if: startsWith(matrix.os, 'ubuntu') == true
       run: npm run package
 
     # validate the swagger file

.prettierignore

@@ -0,0 +1,9 @@
+# Not within the scope of Prettier
+**/*.yml
+**/*.yaml
+**/*.json
+**/*.md
+**/*.css
+**/*.html
+**/*.scss
+composer.lock

.vscode/settings.json

@@ -0,0 +1,40 @@
+{
+    "[vue]": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+    "[javascript]": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+    "cSpell.words": [
+        "AUTHCRAMMD",
+        "AUTHLOGIN",
+        "AUTHPLAIN",
+        "bordercolor",
+        "CRAMMD",
+        "dateparse",
+        "EHLO",
+        "ESMTP",
+        "EXPN",
+        "gofmt",
+        "Healthz",
+        "HTTPIP",
+        "Inlines",
+        "jhillyerd",
+        "leporo",
+        "lithammer",
+        "livez",
+        "Mechs",
+        "navhtml",
+        "neostandard",
+        "nolint",
+        "popperjs",
+        "readyz",
+        "RSET",
+        "shortuuid",
+        "SMTPTLS",
+        "swaggerexpert",
+        "UITLS",
+        "VRFY",
+        "writef"
+    ]
+}

CONTRIBUTING.md

@@ -0,0 +1,61 @@
+# Contributing guide
+
+Thank you for your interest in contributing to Mailpit, your help is greatly appreciated! Please follow the guidelines below to ensure a smooth contribution process.
+
+
+## Code of conduct
+
+Please be respectful and considerate in all interactions. Mailpit is open source and free of charge, however is the result of thousands of hours of work.
+
+
+## Reporting issues and feature requests
+
+If you find a bug or have a feature request, please [open an issue](https://github.com/axllent/mailpit/issues) and provide as much detail as possible. Pleas do not report security issues here (see below).
+
+
+## Reporting security issues
+
+Please do not report security issues publicly in GitHub. Refer to [SECURITY document](https://github.com/axllent/mailpit/blob/develop/.github/SECURITY.md) for instructions and contact information.
+
+
+
+## How to contribute (pull request)
+
+1. **Fork the repository**  
+   Click the "Fork" button at the top right of this repository to create your own copy.
+
+2. **Clone your fork**  
+   ```bash
+   git clone https://github.com/your-username/mailpit.git
+   cd mailpit
+   ```
+
+3. **Create a branch**  
+   Use a descriptive branch name:
+   ```bash
+   git checkout -b feature/your-feature-name
+   ```
+
+4. **Make your changes**  
+   Write clear, concise code and include comments where necessary.
+
+5. **Test your changes**  
+   Run all tests to ensure nothing is broken. This is a mandatory step as pull requests cannot be merged unless they pass the automated testing.
+
+6. **Ensure your changes pass linting**  
+   Ensure your changes pass the [code linting](https://mailpit.axllent.org/docs/development/code-linting/) requirements. This is a mandatory step as pull requests cannot be merged unless they pass the automated linting tests.
+
+7. **Commit and push**  
+   Write a clear commit message:
+   ```bash
+   git add .
+   git commit -m "Describe your changes"
+   git push origin feature/your-feature-name
+   ```
+
+8. **Open a pull request**  
+   Go to your fork on GitHub and open a pull request against the `develop` branch. Fill out the PR template and describe your changes.
+
+---
+
+Thank you for helping make this project awesome!

Dockerfile

@@ -6,7 +6,7 @@ COPY . /app
 
 WORKDIR /app
 
-RUN apk add --no-cache git npm && \
+RUN  apk upgrade && apk add git npm && \
 npm install && npm run package && \
 CGO_ENABLED=0 go build -ldflags "-s -w -X github.com/axllent/mailpit/config.Version=${VERSION}" -o /mailpit
 
@@ -21,10 +21,10 @@ LABEL org.opencontainers.image.title="Mailpit" \
 
 COPY --from=builder /mailpit /mailpit
 
-RUN apk add --no-cache tzdata
+RUN apk upgrade --no-cache && apk add --no-cache tzdata
 
 EXPOSE 1025/tcp 1110/tcp 8025/tcp
 
-HEALTHCHECK --interval=15s CMD /mailpit readyz
+HEALTHCHECK --interval=15s --start-period=10s --start-interval=1s CMD ["/mailpit", "readyz"]
 
 ENTRYPOINT ["/mailpit"]

README.md

@@ -46,8 +46,10 @@ including image thumbnails), including optional [HTTPS](https://mailpit.axllent.
 - Mobile and tablet HTML preview toggle in desktop mode
 - [Message tagging](https://mailpit.axllent.org/docs/usage/tagging/) including manual tagging or automated tagging using filtering and "plus addressing"
 - [SMTP relaying](https://mailpit.axllent.org/docs/configuration/smtp-relay/) (message release) - relay messages via a different SMTP server including an optional allowlist of accepted recipients
+- [SMTP forwarding](https://mailpit.axllent.org/docs/configuration/smtp-forward/) - automatically forward messages via a different SMTP server to predefined email addresses
 - Fast message [storing & processing](https://mailpit.axllent.org/docs/configuration/email-storage/) - ingesting 100-200 emails per second over SMTP depending on CPU, network speed & email size,
 easily handling tens of thousands of emails, with automatic email pruning (by default keeping the most recent 500 emails)
+- [Chaos](https://mailpit.axllent.org/docs/integration/chaos/) feature to enable configurable SMTP errors to test application resilience
 - `List-Unsubscribe` syntax validation
 - Optional [webhook](https://mailpit.axllent.org/docs/integration/webhook/) for received messages
 
@@ -66,12 +68,18 @@ Mailpit runs as a single binary and can be installed in different ways:
 - **FreeBSD**: `pkg install mailpit`
 
 
-### Install via bash script (Linux & Mac)
+### Install via script (Linux & Mac)
 
 Linux & Mac users can install it directly to `/usr/local/bin/mailpit` with:
 
-```bash
-sudo bash < <(curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/install.sh)
+```shell
+sudo sh < <(curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/install.sh)
+```
+
+You can also change the install path to something else by setting the `INSTALL_PATH` environment, for example:
+
+```shell
+INSTALL_PATH=/usr/bin sudo sh < <(curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/install.sh)
 ```
 
 

cmd/dump.go

@@ -0,0 +1,36 @@
+package cmd
+
+import (
+	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/dump"
+	"github.com/axllent/mailpit/internal/logger"
+	"github.com/spf13/cobra"
+)
+
+// dumpCmd represents the dump command
+var dumpCmd = &cobra.Command{
+	Use:   "dump <database> <output-dir>",
+	Short: "Dump all messages from a database to a directory",
+	Long: `Dump all messages stored in Mailpit into a local directory as individual files.
+
+The database can either be the database file (eg: --database /var/lib/mailpit/mailpit.db) or a
+URL of a running Mailpit instance (eg: --http http://127.0.0.1/). If dumping over HTTP, the URL
+should be the base URL of your running Mailpit instance, not the link to the API itself.`,
+	Args: cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		if err := dump.Sync(args[0]); err != nil {
+			logger.Log().Fatal(err)
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(dumpCmd)
+
+	dumpCmd.Flags().SortFlags = false
+
+	dumpCmd.Flags().StringVar(&config.Database, "database", config.Database, "Dump messages directly from a database file")
+	dumpCmd.Flags().StringVar(&config.TenantID, "tenant-id", config.TenantID, "Database tenant ID to isolate data (optional)")
+	dumpCmd.Flags().StringVar(&dump.URL, "http", dump.URL, "Dump messages via HTTP API (base URL of running Mailpit instance)")
+	dumpCmd.Flags().BoolVarP(&logger.VerboseLogging, "verbose", "v", logger.VerboseLogging, "Verbose logging")
+}

cmd/ingest.go

@@ -55,7 +55,7 @@ The --recent flag will only consider files with a modification date within the l
 						logger.Log().Errorf("%s: %s", path, err.Error())
 						return nil
 					}
-					defer f.Close() // #nosec
+					defer func() { _ = f.Close() }()
 
 					body, err := io.ReadAll(f)
 					if err != nil {

cmd/root.go

@@ -9,10 +9,12 @@ import (
 	"github.com/axllent/mailpit/config"
 	"github.com/axllent/mailpit/internal/auth"
 	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/prometheus"
+	"github.com/axllent/mailpit/internal/smtpd"
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
 	"github.com/axllent/mailpit/internal/storage"
 	"github.com/axllent/mailpit/internal/tools"
 	"github.com/axllent/mailpit/server"
-	"github.com/axllent/mailpit/server/smtpd"
 	"github.com/axllent/mailpit/server/webhook"
 	"github.com/spf13/cobra"
 )
@@ -38,6 +40,14 @@ Documentation:
 			os.Exit(1)
 		}
 
+		// Start Prometheus metrics if enabled
+		switch prometheus.GetMode() {
+		case "integrated":
+			prometheus.StartUpdater()
+		case "separate":
+			go prometheus.StartSeparateServer()
+		}
+
 		go server.Listen()
 
 		if err := smtpd.Listen(); err != nil {
@@ -57,14 +67,6 @@ func Execute() {
 	}
 }
 
-// SendmailExecute adds all child commands to the root command and sets flags appropriately.
-// This is called by main.main(). It only needs to happen once to the rootCmd.
-func SendmailExecute() {
-	args := []string{"mailpit", "sendmail"}
-
-	rootCmd.Run(sendmailCmd, args)
-}
-
 func init() {
 	// hide autocompletion
 	rootCmd.CompletionOptions.HiddenDefaultCmd = true
@@ -82,12 +84,15 @@ func init() {
 	initConfigFromEnv()
 
 	rootCmd.Flags().StringVarP(&config.Database, "database", "d", config.Database, "Database to store persistent data")
+	rootCmd.Flags().BoolVar(&config.DisableWAL, "disable-wal", config.DisableWAL, "Disable WAL for local database (allows NFS mounted DBs)")
+	rootCmd.Flags().BoolVar(&config.DisableVersionCheck, "disable-version-check", config.DisableVersionCheck, "Disable version update checking")
+	rootCmd.Flags().IntVar(&config.Compression, "compression", config.Compression, "Compression level to store raw messages (0-3)")
 	rootCmd.Flags().StringVar(&config.Label, "label", config.Label, "Optional label identify this Mailpit instance")
 	rootCmd.Flags().StringVar(&config.TenantID, "tenant-id", config.TenantID, "Database tenant ID to isolate data")
 	rootCmd.Flags().IntVarP(&config.MaxMessages, "max", "m", config.MaxMessages, "Max number of messages to store")
 	rootCmd.Flags().StringVar(&config.MaxAge, "max-age", config.MaxAge, "Max age of messages in either (h)ours or (d)ays (eg: 3d)")
 	rootCmd.Flags().BoolVar(&config.UseMessageDates, "use-message-dates", config.UseMessageDates, "Use message dates as the received dates")
-	rootCmd.Flags().BoolVar(&config.IgnoreDuplicateIDs, "ignore-duplicate-ids", config.IgnoreDuplicateIDs, "Ignore duplicate messages (by Message-Id)")
+	rootCmd.Flags().BoolVar(&config.IgnoreDuplicateIDs, "ignore-duplicate-ids", config.IgnoreDuplicateIDs, "Ignore duplicate messages (by Message-ID)")
 	rootCmd.Flags().StringVar(&logger.LogFile, "log-file", logger.LogFile, "Log output to file instead of stdout")
 	rootCmd.Flags().BoolVarP(&logger.QuietLogging, "quiet", "q", logger.QuietLogging, "Quiet logging (errors only)")
 	rootCmd.Flags().BoolVarP(&logger.VerboseLogging, "verbose", "v", logger.VerboseLogging, "Verbose logging")
@@ -102,6 +107,12 @@ func init() {
 	rootCmd.Flags().BoolVar(&config.BlockRemoteCSSAndFonts, "block-remote-css-and-fonts", config.BlockRemoteCSSAndFonts, "Block access to remote CSS & fonts")
 	rootCmd.Flags().StringVar(&config.EnableSpamAssassin, "enable-spamassassin", config.EnableSpamAssassin, "Enable integration with SpamAssassin")
 	rootCmd.Flags().BoolVar(&config.AllowUntrustedTLS, "allow-untrusted-tls", config.AllowUntrustedTLS, "Do not verify HTTPS certificates (link checker & screenshots)")
+	rootCmd.Flags().BoolVar(&config.DisableHTTPCompression, "disable-http-compression", config.DisableHTTPCompression, "Disable HTTP compression support (web UI & API)")
+	rootCmd.Flags().BoolVar(&config.HideDeleteAllButton, "hide-delete-all-button", config.HideDeleteAllButton, "Hide the \"Delete all\" button in the web UI")
+
+	// Send API
+	rootCmd.Flags().StringVar(&config.SendAPIAuthFile, "send-api-auth-file", config.SendAPIAuthFile, "A password file for Send API authentication")
+	rootCmd.Flags().BoolVar(&config.SendAPIAuthAcceptAny, "send-api-auth-accept-any", config.SendAPIAuthAcceptAny, "Accept any username and password for the Send API endpoint, including none")
 
 	// SMTP server
 	rootCmd.Flags().StringVarP(&config.SMTPListen, "smtp", "s", config.SMTPListen, "SMTP bind interface and port")
@@ -115,6 +126,7 @@ func init() {
 	rootCmd.Flags().BoolVar(&config.SMTPStrictRFCHeaders, "smtp-strict-rfc-headers", config.SMTPStrictRFCHeaders, "Return SMTP error if message headers contain <CR><CR><LF>")
 	rootCmd.Flags().IntVar(&config.SMTPMaxRecipients, "smtp-max-recipients", config.SMTPMaxRecipients, "Maximum SMTP recipients allowed")
 	rootCmd.Flags().StringVar(&config.SMTPAllowedRecipients, "smtp-allowed-recipients", config.SMTPAllowedRecipients, "Only allow SMTP recipients matching a regular expression (default allow all)")
+	rootCmd.Flags().BoolVar(&config.SMTPIgnoreRejectedRecipients, "smtp-ignore-rejected-recipients", config.SMTPIgnoreRejectedRecipients, "Ignore rejected SMTP recipients with 2xx response")
 	rootCmd.Flags().BoolVar(&smtpd.DisableReverseDNS, "smtp-disable-rdns", smtpd.DisableReverseDNS, "Disable SMTP reverse DNS lookups")
 
 	// SMTP relay
@@ -122,6 +134,13 @@ func init() {
 	rootCmd.Flags().BoolVar(&config.SMTPRelayAll, "smtp-relay-all", config.SMTPRelayAll, "Auto-relay all new messages via external SMTP server (caution!)")
 	rootCmd.Flags().StringVar(&config.SMTPRelayMatching, "smtp-relay-matching", config.SMTPRelayMatching, "Auto-relay new messages to only matching recipients (regular expression)")
 
+	// SMTP forwarding
+	rootCmd.Flags().StringVar(&config.SMTPForwardConfigFile, "smtp-forward-config", config.SMTPForwardConfigFile, "SMTP forwarding configuration file for all messages")
+
+	// Chaos
+	rootCmd.Flags().BoolVar(&chaos.Enabled, "enable-chaos", chaos.Enabled, "Enable Chaos functionality (API / web UI)")
+	rootCmd.Flags().StringVar(&config.ChaosTriggers, "chaos-triggers", config.ChaosTriggers, "Enable Chaos & set the triggers for SMTP server")
+
 	// POP3 server
 	rootCmd.Flags().StringVar(&config.POP3Listen, "pop3", config.POP3Listen, "POP3 server bind interface and port")
 	rootCmd.Flags().StringVar(&config.POP3AuthFile, "pop3-auth-file", config.POP3AuthFile, "A password file for POP3 server authentication (enables POP3 server)")
@@ -133,6 +152,10 @@ func init() {
 	rootCmd.Flags().StringVar(&config.TagsConfig, "tags-config", config.TagsConfig, "Load tags filters from yaml configuration file")
 	rootCmd.Flags().BoolVar(&tools.TagsTitleCase, "tags-title-case", tools.TagsTitleCase, "TitleCase new tags generated from plus-addresses and X-Tags")
 	rootCmd.Flags().StringVar(&config.TagsDisable, "tags-disable", config.TagsDisable, "Disable auto-tagging, comma separated (eg: plus-addresses,x-tags)")
+	rootCmd.Flags().BoolVar(&config.TagsUsername, "tags-username", config.TagsUsername, "Auto-tag messages with the authenticated username")
+
+	// Prometheus metrics
+	rootCmd.Flags().StringVar(&config.PrometheusListen, "enable-prometheus", config.PrometheusListen, "Enable Prometheus metrics: true|false|<ip:port> (eg:'0.0.0.0:9090')")
 
 	// Webhook
 	rootCmd.Flags().StringVar(&config.WebhookURL, "webhook-url", config.WebhookURL, "Send a webhook request for new messages")
@@ -173,6 +196,14 @@ func initConfigFromEnv() {
 		config.Database = os.Getenv("MP_DATABASE")
 	}
 
+	config.DisableWAL = getEnabledFromEnv("MP_DISABLE_WAL")
+
+	config.DisableVersionCheck = getEnabledFromEnv("MP_DISABLE_VERSION_CHECK")
+
+	if len(os.Getenv("MP_COMPRESSION")) > 0 {
+		config.Compression, _ = strconv.Atoi(os.Getenv("MP_COMPRESSION"))
+	}
+
 	config.TenantID = os.Getenv("MP_TENANT_ID")
 
 	config.Label = os.Getenv("MP_LABEL")
@@ -208,7 +239,7 @@ func initConfigFromEnv() {
 	}
 	config.UIAuthFile = os.Getenv("MP_UI_AUTH_FILE")
 	if err := auth.SetUIAuth(os.Getenv("MP_UI_AUTH")); err != nil {
-		logger.Log().Errorf(err.Error())
+		logger.Log().Error(err.Error())
 	}
 	config.UITLSCert = os.Getenv("MP_UI_TLS_CERT")
 	config.UITLSKey = os.Getenv("MP_UI_TLS_KEY")
@@ -224,6 +255,21 @@ func initConfigFromEnv() {
 	if getEnabledFromEnv("MP_ALLOW_UNTRUSTED_TLS") {
 		config.AllowUntrustedTLS = true
 	}
+	if getEnabledFromEnv("MP_DISABLE_HTTP_COMPRESSION") {
+		config.DisableHTTPCompression = true
+	}
+	if getEnabledFromEnv("MP_HIDE_DELETE_ALL_BUTTON") {
+		config.HideDeleteAllButton = true
+	}
+
+	// Send API
+	config.SendAPIAuthFile = os.Getenv("MP_SEND_API_AUTH_FILE")
+	if err := auth.SetSendAPIAuth(os.Getenv("MP_SEND_API_AUTH")); err != nil {
+		logger.Log().Error(err.Error())
+	}
+	if getEnabledFromEnv("MP_SEND_API_AUTH_ACCEPT_ANY") {
+		config.SendAPIAuthAcceptAny = true
+	}
 
 	// SMTP server
 	if len(os.Getenv("MP_SMTP_BIND_ADDR")) > 0 {
@@ -231,7 +277,7 @@ func initConfigFromEnv() {
 	}
 	config.SMTPAuthFile = os.Getenv("MP_SMTP_AUTH_FILE")
 	if err := auth.SetSMTPAuth(os.Getenv("MP_SMTP_AUTH")); err != nil {
-		logger.Log().Errorf(err.Error())
+		logger.Log().Error(err.Error())
 	}
 	if getEnabledFromEnv("MP_SMTP_AUTH_ACCEPT_ANY") {
 		config.SMTPAuthAcceptAny = true
@@ -256,6 +302,9 @@ func initConfigFromEnv() {
 	if len(os.Getenv("MP_SMTP_ALLOWED_RECIPIENTS")) > 0 {
 		config.SMTPAllowedRecipients = os.Getenv("MP_SMTP_ALLOWED_RECIPIENTS")
 	}
+	if getEnabledFromEnv("MP_SMTP_IGNORE_REJECTED_RECIPIENTS") {
+		config.SMTPIgnoreRejectedRecipients = true
+	}
 	if getEnabledFromEnv("MP_SMTP_DISABLE_RDNS") {
 		smtpd.DisableReverseDNS = true
 	}
@@ -272,14 +321,39 @@ func initConfigFromEnv() {
 		config.SMTPRelayConfig.Port, _ = strconv.Atoi(os.Getenv("MP_SMTP_RELAY_PORT"))
 	}
 	config.SMTPRelayConfig.STARTTLS = getEnabledFromEnv("MP_SMTP_RELAY_STARTTLS")
+	config.SMTPRelayConfig.TLS = getEnabledFromEnv("MP_SMTP_RELAY_TLS")
 	config.SMTPRelayConfig.AllowInsecure = getEnabledFromEnv("MP_SMTP_RELAY_ALLOW_INSECURE")
 	config.SMTPRelayConfig.Auth = os.Getenv("MP_SMTP_RELAY_AUTH")
 	config.SMTPRelayConfig.Username = os.Getenv("MP_SMTP_RELAY_USERNAME")
 	config.SMTPRelayConfig.Password = os.Getenv("MP_SMTP_RELAY_PASSWORD")
 	config.SMTPRelayConfig.Secret = os.Getenv("MP_SMTP_RELAY_SECRET")
 	config.SMTPRelayConfig.ReturnPath = os.Getenv("MP_SMTP_RELAY_RETURN_PATH")
+	config.SMTPRelayConfig.OverrideFrom = os.Getenv("MP_SMTP_RELAY_OVERRIDE_FROM")
 	config.SMTPRelayConfig.AllowedRecipients = os.Getenv("MP_SMTP_RELAY_ALLOWED_RECIPIENTS")
 	config.SMTPRelayConfig.BlockedRecipients = os.Getenv("MP_SMTP_RELAY_BLOCKED_RECIPIENTS")
+	config.SMTPRelayConfig.PreserveMessageIDs = getEnabledFromEnv("MP_SMTP_RELAY_PRESERVE_MESSAGE_IDS")
+
+	// SMTP forwarding
+	config.SMTPForwardConfigFile = os.Getenv("MP_SMTP_FORWARD_CONFIG")
+	config.SMTPForwardConfig = config.SMTPForwardConfigStruct{}
+	config.SMTPForwardConfig.Host = os.Getenv("MP_SMTP_FORWARD_HOST")
+	if len(os.Getenv("MP_SMTP_FORWARD_PORT")) > 0 {
+		config.SMTPForwardConfig.Port, _ = strconv.Atoi(os.Getenv("MP_SMTP_FORWARD_PORT"))
+	}
+	config.SMTPForwardConfig.STARTTLS = getEnabledFromEnv("MP_SMTP_FORWARD_STARTTLS")
+	config.SMTPForwardConfig.TLS = getEnabledFromEnv("MP_SMTP_FORWARD_TLS")
+	config.SMTPForwardConfig.AllowInsecure = getEnabledFromEnv("MP_SMTP_FORWARD_ALLOW_INSECURE")
+	config.SMTPForwardConfig.Auth = os.Getenv("MP_SMTP_FORWARD_AUTH")
+	config.SMTPForwardConfig.Username = os.Getenv("MP_SMTP_FORWARD_USERNAME")
+	config.SMTPForwardConfig.Password = os.Getenv("MP_SMTP_FORWARD_PASSWORD")
+	config.SMTPForwardConfig.Secret = os.Getenv("MP_SMTP_FORWARD_SECRET")
+	config.SMTPForwardConfig.ReturnPath = os.Getenv("MP_SMTP_FORWARD_RETURN_PATH")
+	config.SMTPForwardConfig.OverrideFrom = os.Getenv("MP_SMTP_FORWARD_OVERRIDE_FROM")
+	config.SMTPForwardConfig.To = os.Getenv("MP_SMTP_FORWARD_TO")
+
+	// Chaos
+	chaos.Enabled = getEnabledFromEnv("MP_ENABLE_CHAOS")
+	config.ChaosTriggers = os.Getenv("MP_CHAOS_TRIGGERS")
 
 	// POP3 server
 	if len(os.Getenv("MP_POP3_BIND_ADDR")) > 0 {
@@ -287,7 +361,7 @@ func initConfigFromEnv() {
 	}
 	config.POP3AuthFile = os.Getenv("MP_POP3_AUTH_FILE")
 	if err := auth.SetPOP3Auth(os.Getenv("MP_POP3_AUTH")); err != nil {
-		logger.Log().Errorf(err.Error())
+		logger.Log().Error(err.Error())
 	}
 	config.POP3TLSCert = os.Getenv("MP_POP3_TLS_CERT")
 	config.POP3TLSKey = os.Getenv("MP_POP3_TLS_KEY")
@@ -297,6 +371,12 @@ func initConfigFromEnv() {
 	config.TagsConfig = os.Getenv("MP_TAGS_CONFIG")
 	tools.TagsTitleCase = getEnabledFromEnv("MP_TAGS_TITLE_CASE")
 	config.TagsDisable = os.Getenv("MP_TAGS_DISABLE")
+	config.TagsUsername = getEnabledFromEnv("MP_TAGS_USERNAME")
+
+	// Prometheus metrics
+	if len(os.Getenv("MP_ENABLE_PROMETHEUS")) > 0 {
+		config.PrometheusListen = os.Getenv("MP_ENABLE_PROMETHEUS")
+	}
 
 	// Webhook
 	if len(os.Getenv("MP_WEBHOOK_URL")) > 0 {
@@ -314,9 +394,9 @@ func initConfigFromEnv() {
 func initDeprecatedConfigFromEnv() {
 	// deprecated 2024/04/12 - but will not be removed to maintain backwards compatibility
 	if len(os.Getenv("MP_DATA_FILE")) > 0 {
+		logger.Log().Warn("ENV MP_DATA_FILE has been deprecated, use MP_DATABASE")
 		config.Database = os.Getenv("MP_DATA_FILE")
 	}
-
 	// deprecated 2023/03/12
 	if len(os.Getenv("MP_UI_SSL_CERT")) > 0 {
 		logger.Log().Warn("ENV MP_UI_SSL_CERT has been deprecated, use MP_UI_TLS_CERT")

cmd/version.go

@@ -6,7 +6,6 @@ import (
 	"runtime"
 
 	"github.com/axllent/mailpit/config"
-	"github.com/axllent/mailpit/internal/updater"
 	"github.com/spf13/cobra"
 )
 
@@ -15,29 +14,41 @@ var versionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Display the current version & update information",
 	Long:  `Display the current version & update information (if available).`,
-	RunE: func(cmd *cobra.Command, args []string) error {
-
-		updater.AllowPrereleases = true
-
+	Run: func(cmd *cobra.Command, args []string) {
 		update, _ := cmd.Flags().GetBool("update")
 
 		if update {
-			return updateApp()
+			// Update the application
+			rel, err := config.GHRUConfig.SelfUpdate()
+			if err != nil {
+				fmt.Printf("Error updating: %s\n", err)
+				os.Exit(1)
+			}
+
+			fmt.Printf("Updated %s to version %s\n", os.Args[0], rel.Tag)
+			os.Exit(0)
 		}
 
 		fmt.Printf("%s %s compiled with %s on %s/%s\n",
 			os.Args[0], config.Version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
 
-		latest, _, _, err := updater.GithubLatest(config.Repo, config.RepoBinaryName)
-		if err == nil && updater.GreaterThan(latest, config.Version) {
-			fmt.Printf(
-				"\nUpdate available: %s\nRun `%s version -u` to update (requires read/write access to install directory).\n",
-				latest,
-				os.Args[0],
-			)
+		release, err := config.GHRUConfig.Latest()
+		if err != nil {
+			fmt.Printf("Error checking for latest release: %s\n", err)
+			os.Exit(1)
 		}
 
-		return nil
+		// The latest version is the same version
+		if release.Tag == config.Version {
+			os.Exit(0)
+		}
+
+		// A newer release is available
+		fmt.Printf(
+			"\nUpdate available: %s\nRun `%s version -u` to update (requires read/write access to install directory).\n",
+			release.Tag,
+			os.Args[0],
+		)
 	},
 }
 
@@ -47,13 +58,3 @@ func init() {
 	versionCmd.Flags().
 		BoolP("update", "u", false, "update to latest version")
 }
-
-func updateApp() error {
-	rel, err := updater.GithubUpdate(config.Repo, config.RepoBinaryName, config.Version)
-	if err != nil {
-		return err
-	}
-
-	fmt.Printf("Updated %s to version %s\n", os.Args[0], rel)
-	return nil
-}

config/config.go

@@ -5,22 +5,34 @@ import (
 	"errors"
 	"fmt"
 	"net"
-	"net/url"
 	"os"
 	"path"
 	"path/filepath"
 	"regexp"
-	"strconv"
 	"strings"
 
+	"github.com/axllent/ghru/v2"
 	"github.com/axllent/mailpit/internal/auth"
 	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
+	"github.com/axllent/mailpit/internal/snakeoil"
 	"github.com/axllent/mailpit/internal/spamassassin"
 	"github.com/axllent/mailpit/internal/tools"
-	"gopkg.in/yaml.v3"
 )
 
 var (
+	// Version is the Mailpit version, updated with every release
+	Version = "dev"
+
+	// GHRUConfig is the configuration for the GitHub Release Updater
+	// used to check for updates and self-update
+	GHRUConfig = ghru.Config{
+		Repo:           "axllent/mailpit",
+		ArchiveName:    "mailpit-{{.OS}}-{{.Arch}}",
+		BinaryName:     "mailpit",
+		CurrentVersion: Version,
+	}
+
 	// SMTPListen to listen on <interface>:<port>
 	SMTPListen = "[::]:1025"
 
@@ -30,6 +42,14 @@ var (
 	// Database for mail (optional)
 	Database string
 
+	// DisableWAL will disable Write-Ahead Logging in SQLite
+	// @see https://sqlite.org/wal.html
+	DisableWAL bool
+
+	// Compression is the compression level used to store raw messages in the database:
+	// 0 = off, 1 = fastest (default), 2 = standard, 3 = best compression
+	Compression = 1
+
 	// TenantID is an optional prefix to be applied to all database tables,
 	// allowing multiple isolated instances of Mailpit to share a database.
 	TenantID string
@@ -63,6 +83,15 @@ var (
 	// Webroot to define the base path for the UI and API
 	Webroot = "/"
 
+	// DisableHTTPCompression will explicitly disable HTTP compression in the web UI and API
+	DisableHTTPCompression bool
+
+	// SendAPIAuthFile for Send API authentication
+	SendAPIAuthFile string
+
+	// SendAPIAuthAcceptAny accepts any username/password for the send API endpoint, including none
+	SendAPIAuthAcceptAny bool
+
 	// SMTPTLSCert file
 	SMTPTLSCert string
 
@@ -114,22 +143,15 @@ var (
 	// including x-tags & plus-addresses
 	TagsDisable string
 
-	// SMTPRelayConfigFile to parse a yaml file and store config of relay SMTP server
+	// TagsUsername enables auto-tagging messages with the authenticated username
+	TagsUsername bool
+
+	// SMTPRelayConfigFile to parse a yaml file and store config of the relay SMTP server
 	SMTPRelayConfigFile string
 
-	// SMTPRelayConfig to parse a yaml file and store config of relay SMTP server
+	// SMTPRelayConfig to parse a yaml file and store config of the the relay SMTP server
 	SMTPRelayConfig SMTPRelayConfigStruct
 
-	// SMTPStrictRFCHeaders will return an error if the email headers contain <CR><CR><LF> (\r\r\n)
-	// @see https://github.com/axllent/mailpit/issues/87 & https://github.com/axllent/mailpit/issues/153
-	SMTPStrictRFCHeaders bool
-
-	// SMTPAllowedRecipients if set, will only accept recipients matching this regular expression
-	SMTPAllowedRecipients string
-
-	// SMTPAllowedRecipientsRegexp is the compiled version of SMTPAllowedRecipients
-	SMTPAllowedRecipientsRegexp *regexp.Regexp
-
 	// ReleaseEnabled is whether message releases are enabled, requires a valid SMTPRelayConfigFile
 	ReleaseEnabled = false
 
@@ -143,6 +165,25 @@ var (
 	// SMTPRelayMatchingRegexp is the compiled version of SMTPRelayMatching
 	SMTPRelayMatchingRegexp *regexp.Regexp
 
+	// SMTPForwardConfigFile to parse a yaml file and store config of the forwarding SMTP server
+	SMTPForwardConfigFile string
+
+	// SMTPForwardConfig to parse a yaml file and store config of the forwarding SMTP server
+	SMTPForwardConfig SMTPForwardConfigStruct
+
+	// SMTPStrictRFCHeaders will return an error if the email headers contain <CR><CR><LF> (\r\r\n)
+	// @see https://github.com/axllent/mailpit/issues/87 & https://github.com/axllent/mailpit/issues/153
+	SMTPStrictRFCHeaders bool
+
+	// SMTPAllowedRecipients if set, will only accept recipients matching this regular expression
+	SMTPAllowedRecipients string
+
+	// SMTPAllowedRecipientsRegexp is the compiled version of SMTPAllowedRecipients
+	SMTPAllowedRecipientsRegexp *regexp.Regexp
+
+	// SMTPIgnoreRejectedRecipients if true, will accept emails to rejected recipients with 2xx response but silently drop them
+	SMTPIgnoreRejectedRecipients bool
+
 	// POP3Listen address - if set then Mailpit will start the POP3 server and listen on this address
 	POP3Listen = "[::]:1110"
 
@@ -158,6 +199,9 @@ var (
 	// EnableSpamAssassin must be either <host>:<port> or "postmark"
 	EnableSpamAssassin string
 
+	// HideDeleteAllButton hides the delete all button in the web UI
+	HideDeleteAllButton bool
+
 	// WebhookURL for calling
 	WebhookURL string
 
@@ -167,18 +211,19 @@ var (
 	// AllowUntrustedTLS allows untrusted HTTPS connections link checking & screenshot generation
 	AllowUntrustedTLS bool
 
-	// Version is the default application version, updated on release
-	Version = "dev"
+	// PrometheusListen address for Prometheus metrics server
+	// Empty = disabled, true= use existing web server, address = separate server
+	PrometheusListen string
 
-	// Repo on Github for updater
-	Repo = "axllent/mailpit"
-
-	// RepoBinaryName on Github for updater
-	RepoBinaryName = "mailpit"
+	// ChaosTriggers are parsed and set in the chaos module
+	ChaosTriggers string
 
 	// DisableHTMLCheck DEPRECATED 2024/04/13 - kept here to display console warning only
 	DisableHTMLCheck = false
 
+	// DisableVersionCheck disables version checking
+	DisableVersionCheck bool
+
 	// DemoMode disables SMTP relay, link checking & HTTP send functionality
 	DemoMode = false
 )
@@ -191,24 +236,43 @@ type autoTag struct {
 
 // SMTPRelayConfigStruct struct for parsing yaml & storing variables
 type SMTPRelayConfigStruct struct {
-	Host                    string         `yaml:"host"`
-	Port                    int            `yaml:"port"`
-	STARTTLS                bool           `yaml:"starttls"`
-	AllowInsecure           bool           `yaml:"allow-insecure"`
+	Host                    string         `yaml:"host"`               // SMTP host
+	Port                    int            `yaml:"port"`               // SMTP port
+	STARTTLS                bool           `yaml:"starttls"`           // whether to use STARTTLS
+	TLS                     bool           `yaml:"tls"`                // whether to use TLS
+	AllowInsecure           bool           `yaml:"allow-insecure"`     // allow insecure authentication, ignore TLS validation
 	Auth                    string         `yaml:"auth"`               // none, plain, login, cram-md5
 	Username                string         `yaml:"username"`           // plain & cram-md5
 	Password                string         `yaml:"password"`           // plain
 	Secret                  string         `yaml:"secret"`             // cram-md5
 	ReturnPath              string         `yaml:"return-path"`        // allow overriding the bounce address
+	OverrideFrom            string         `yaml:"override-from"`      // allow overriding of the from address
 	AllowedRecipients       string         `yaml:"allowed-recipients"` // regex, if set needs to match for mails to be relayed
 	AllowedRecipientsRegexp *regexp.Regexp // compiled regexp using AllowedRecipients
 	BlockedRecipients       string         `yaml:"blocked-recipients"` // regex, if set prevents relating to these addresses
 	BlockedRecipientsRegexp *regexp.Regexp // compiled regexp using BlockedRecipients
+	PreserveMessageIDs      bool           `yaml:"preserve-message-ids"` // preserve the original Message-ID when relaying
 
 	// DEPRECATED 2024/03/12
 	RecipientAllowlist string `yaml:"recipient-allowlist"`
 }
 
+// SMTPForwardConfigStruct struct for parsing yaml & storing variables
+type SMTPForwardConfigStruct struct {
+	To            string `yaml:"to"`             // comma-separated list of email addresses
+	Host          string `yaml:"host"`           // SMTP host
+	Port          int    `yaml:"port"`           // SMTP port
+	STARTTLS      bool   `yaml:"starttls"`       // whether to use STARTTLS
+	TLS           bool   `yaml:"tls"`            // whether to use TLS
+	AllowInsecure bool   `yaml:"allow-insecure"` // allow insecure authentication, ignore TLS validation
+	Auth          string `yaml:"auth"`           // none, plain, login, cram-md5
+	Username      string `yaml:"username"`       // plain & cram-md5
+	Password      string `yaml:"password"`       // plain
+	Secret        string `yaml:"secret"`         // cram-md5
+	ReturnPath    string `yaml:"return-path"`    // allow overriding the bounce address
+	OverrideFrom  string `yaml:"override-from"`  // allow overriding of the from address
+}
+
 // VerifyConfig wil do some basic checking
 func VerifyConfig() error {
 	cssFontRestriction := "*"
@@ -227,6 +291,10 @@ func VerifyConfig() error {
 		Database = filepath.Join(Database, "mailpit.db")
 	}
 
+	if Compression < 0 || Compression > 3 {
+		return errors.New("[db] compression level must be between 0 and 3")
+	}
+
 	Label = tools.Normalize(Label)
 
 	if err := parseMaxAge(); err != nil {
@@ -246,6 +314,7 @@ func VerifyConfig() error {
 		return errors.New("[ui] HTTP bind should be in the format of <ip>:<port>")
 	}
 
+	// Web UI & API
 	if UIAuthFile != "" {
 		UIAuthFile = filepath.Clean(UIAuthFile)
 
@@ -268,8 +337,19 @@ func VerifyConfig() error {
 	}
 
 	if UITLSCert != "" {
-		UITLSCert = filepath.Clean(UITLSCert)
-		UITLSKey = filepath.Clean(UITLSKey)
+		if strings.HasPrefix(UITLSCert, "sans:") {
+			// generate a self-signed certificate
+			UITLSCert = snakeoil.Public(UITLSCert)
+		} else {
+			UITLSCert = filepath.Clean(UITLSCert)
+		}
+
+		if strings.HasPrefix(UITLSKey, "sans:") {
+			// generate a self-signed key
+			UITLSKey = snakeoil.Private(UITLSKey)
+		} else {
+			UITLSKey = filepath.Clean(UITLSKey)
+		}
 
 		if !isFile(UITLSCert) {
 			return fmt.Errorf("[ui] TLS certificate not found or readable: %s", UITLSCert)
@@ -280,13 +360,67 @@ func VerifyConfig() error {
 		}
 	}
 
+	// Send API
+	if SendAPIAuthFile != "" {
+		SendAPIAuthFile = filepath.Clean(SendAPIAuthFile)
+
+		if !isFile(SendAPIAuthFile) {
+			return fmt.Errorf("[send-api] password file not found or readable: %s", SendAPIAuthFile)
+		}
+
+		b, err := os.ReadFile(SendAPIAuthFile)
+		if err != nil {
+			return err
+		}
+
+		if err := auth.SetSendAPIAuth(string(b)); err != nil {
+			return err
+		}
+
+		logger.Log().Info("[send-api] enabling basic authentication")
+	}
+
+	if auth.SendAPICredentials != nil && SendAPIAuthAcceptAny {
+		return errors.New("[send-api] authentication cannot use both credentials and --send-api-auth-accept-any")
+	}
+
+	if SendAPIAuthAcceptAny && auth.UICredentials != nil {
+		logger.Log().Info("[send-api] disabling authentication")
+	}
+
+	// Prometheus configuration validation
+	if PrometheusListen != "" {
+		mode := strings.ToLower(strings.TrimSpace(PrometheusListen))
+		if mode != "true" && mode != "false" {
+			// Validate as address for separate server mode
+			_, err := net.ResolveTCPAddr("tcp", PrometheusListen)
+			if err != nil {
+				return fmt.Errorf("[prometheus] %s", err.Error())
+			}
+		} else if mode == "true" {
+			logger.Log().Info("[prometheus] enabling metrics")
+		}
+	}
+
+	// SMTP server
 	if SMTPTLSCert != "" && SMTPTLSKey == "" || SMTPTLSCert == "" && SMTPTLSKey != "" {
-		return errors.New("[smtp] You must provide both an SMTP TLS certificate and a key")
+		return errors.New("[smtp] you must provide both an SMTP TLS certificate and a key")
 	}
 
 	if SMTPTLSCert != "" {
-		SMTPTLSCert = filepath.Clean(SMTPTLSCert)
-		SMTPTLSKey = filepath.Clean(SMTPTLSKey)
+		if strings.HasPrefix(SMTPTLSCert, "sans:") {
+			// generate a self-signed certificate
+			SMTPTLSCert = snakeoil.Public(SMTPTLSCert)
+		} else {
+			SMTPTLSCert = filepath.Clean(SMTPTLSCert)
+		}
+
+		if strings.HasPrefix(SMTPTLSKey, "sans:") {
+			// generate a self-signed key
+			SMTPTLSKey = snakeoil.Private(SMTPTLSKey)
+		} else {
+			SMTPTLSKey = filepath.Clean(SMTPTLSKey)
+		}
 
 		if !isFile(SMTPTLSCert) {
 			return fmt.Errorf("[smtp] TLS certificate not found or readable: %s", SMTPTLSCert)
@@ -344,10 +478,28 @@ func VerifyConfig() error {
 		return errors.New("[smtp] authentication requires STARTTLS or TLS encryption, run with `--smtp-auth-allow-insecure` to allow insecure authentication")
 	}
 
+	if err := parseChaosTriggers(); err != nil {
+		return fmt.Errorf("[chaos] %s", err.Error())
+	}
+
+	if chaos.Enabled {
+		logger.Log().Info("[chaos] is enabled")
+	}
+
 	// POP3 server
 	if POP3TLSCert != "" {
-		POP3TLSCert = filepath.Clean(POP3TLSCert)
-		POP3TLSKey = filepath.Clean(POP3TLSKey)
+		if strings.HasPrefix(POP3TLSCert, "sans:") {
+			// generate a self-signed certificate
+			POP3TLSCert = snakeoil.Public(POP3TLSCert)
+		} else {
+			POP3TLSCert = filepath.Clean(POP3TLSCert)
+		}
+		if strings.HasPrefix(POP3TLSKey, "sans:") {
+			// generate a self-signed key
+			POP3TLSKey = snakeoil.Private(POP3TLSKey)
+		} else {
+			POP3TLSKey = filepath.Clean(POP3TLSKey)
+		}
 
 		if !isFile(POP3TLSCert) {
 			return fmt.Errorf("[pop3] TLS certificate not found or readable: %s", POP3TLSCert)
@@ -358,7 +510,7 @@ func VerifyConfig() error {
 		}
 	}
 	if POP3TLSCert != "" && POP3TLSKey == "" || POP3TLSCert == "" && POP3TLSKey != "" {
-		return errors.New("[pop3] You must provide both a POP3 TLS certificate and a key")
+		return errors.New("[pop3] you must provide both a POP3 TLS certificate and a key")
 	}
 	if POP3Listen != "" {
 		_, err := net.ResolveTCPAddr("tcp", POP3Listen)
@@ -432,6 +584,14 @@ func VerifyConfig() error {
 		logger.Log().Infof("[smtp] only allowing recipients matching regexp: %s", SMTPAllowedRecipients)
 	}
 
+	if SMTPIgnoreRejectedRecipients {
+		if SMTPAllowedRecipientsRegexp == nil {
+			logger.Log().Warn("[smtp] ignoring rejected recipients has no effect without setting smtp-allowed-recipients")
+		} else {
+			logger.Log().Info("[smtp] ignoring rejected recipients")
+		}
+	}
+
 	if err := parseRelayConfig(SMTPRelayConfigFile); err != nil {
 		return err
 	}
@@ -465,6 +625,15 @@ func VerifyConfig() error {
 		logger.Log().Warnf("[relay] auto-relaying all new messages via %s:%d", SMTPRelayConfig.Host, SMTPRelayConfig.Port)
 	}
 
+	if err := parseForwardConfig(SMTPForwardConfigFile); err != nil {
+		return err
+	}
+
+	// separate forwarding config validation to account for environment variables
+	if err := validateForwardConfig(); err != nil {
+		return err
+	}
+
 	if DemoMode {
 		MaxMessages = 1000
 		// this deserves a warning
@@ -473,171 +642,3 @@ func VerifyConfig() error {
 
 	return nil
 }
-
-// Parse the --max-age value (if set)
-func parseMaxAge() error {
-	if MaxAge == "" {
-		return nil
-	}
-
-	re := regexp.MustCompile(`^\d+(h|d)$`)
-	if !re.MatchString(MaxAge) {
-		return fmt.Errorf("max-age must be either <int>h for hours or <int>d for days: %s", MaxAge)
-	}
-
-	if strings.HasSuffix(MaxAge, "h") {
-		hours, err := strconv.Atoi(strings.TrimSuffix(MaxAge, "h"))
-		if err != nil {
-			return err
-		}
-
-		MaxAgeInHours = hours
-
-		return nil
-	}
-
-	days, err := strconv.Atoi(strings.TrimSuffix(MaxAge, "d"))
-	if err != nil {
-		return err
-	}
-
-	logger.Log().Debugf("[db] auto-deleting messages older than %s", MaxAge)
-
-	MaxAgeInHours = days * 24
-	return nil
-}
-
-// Parse the SMTPRelayConfigFile (if set)
-func parseRelayConfig(c string) error {
-	if c == "" {
-		return nil
-	}
-
-	c = filepath.Clean(c)
-
-	if !isFile(c) {
-		return fmt.Errorf("[smtp] relay configuration not found or readable: %s", c)
-	}
-
-	data, err := os.ReadFile(c)
-	if err != nil {
-		return err
-	}
-
-	if err := yaml.Unmarshal(data, &SMTPRelayConfig); err != nil {
-		return err
-	}
-
-	if SMTPRelayConfig.Host == "" {
-		return errors.New("[smtp] relay host not set")
-	}
-
-	// DEPRECATED 2024/03/12
-	if SMTPRelayConfig.RecipientAllowlist != "" {
-		logger.Log().Warn("[smtp] relay 'recipient-allowlist' is deprecated, use 'allowed-recipients' instead")
-		if SMTPRelayConfig.AllowedRecipients == "" {
-			SMTPRelayConfig.AllowedRecipients = SMTPRelayConfig.RecipientAllowlist
-		}
-	}
-
-	return nil
-}
-
-// Validate the SMTPRelayConfig (if Host is set)
-func validateRelayConfig() error {
-	if SMTPRelayConfig.Host == "" {
-		return nil
-	}
-
-	if SMTPRelayConfig.Port == 0 {
-		SMTPRelayConfig.Port = 25 // default
-	}
-
-	SMTPRelayConfig.Auth = strings.ToLower(SMTPRelayConfig.Auth)
-
-	if SMTPRelayConfig.Auth == "" || SMTPRelayConfig.Auth == "none" || SMTPRelayConfig.Auth == "false" {
-		SMTPRelayConfig.Auth = "none"
-	} else if SMTPRelayConfig.Auth == "plain" {
-		if SMTPRelayConfig.Username == "" || SMTPRelayConfig.Password == "" {
-			return fmt.Errorf("[smtp] relay host username or password not set for PLAIN authentication")
-		}
-	} else if SMTPRelayConfig.Auth == "login" {
-		SMTPRelayConfig.Auth = "login"
-		if SMTPRelayConfig.Username == "" || SMTPRelayConfig.Password == "" {
-			return fmt.Errorf("[smtp] relay host username or password not set for LOGIN authentication")
-		}
-	} else if strings.HasPrefix(SMTPRelayConfig.Auth, "cram") {
-		SMTPRelayConfig.Auth = "cram-md5"
-		if SMTPRelayConfig.Username == "" || SMTPRelayConfig.Secret == "" {
-			return fmt.Errorf("[smtp] relay host username or secret not set for CRAM-MD5 authentication")
-		}
-	} else {
-		return fmt.Errorf("[smtp] relay authentication method not supported: %s", SMTPRelayConfig.Auth)
-	}
-
-	ReleaseEnabled = true
-
-	logger.Log().Infof("[smtp] enabling message relaying via %s:%d", SMTPRelayConfig.Host, SMTPRelayConfig.Port)
-
-	if SMTPRelayConfig.AllowedRecipients != "" {
-		re, err := regexp.Compile(SMTPRelayConfig.AllowedRecipients)
-		if err != nil {
-			return fmt.Errorf("[smtp] failed to compile relay recipient allowlist regexp: %s", err.Error())
-		}
-
-		SMTPRelayConfig.AllowedRecipientsRegexp = re
-		logger.Log().Infof("[smtp] relay recipient allowlist is active with the following regexp: %s", SMTPRelayConfig.AllowedRecipients)
-	}
-
-	if SMTPRelayConfig.BlockedRecipients != "" {
-		re, err := regexp.Compile(SMTPRelayConfig.BlockedRecipients)
-		if err != nil {
-			return fmt.Errorf("[smtp] failed to compile relay recipient blocklist regexp: %s", err.Error())
-		}
-
-		SMTPRelayConfig.BlockedRecipientsRegexp = re
-		logger.Log().Infof("[smtp] relay recipient blocklist is active with the following regexp: %s", SMTPRelayConfig.BlockedRecipients)
-	}
-
-	return nil
-}
-
-// IsFile returns whether a file exists and is readable
-func isFile(path string) bool {
-	f, err := os.Open(filepath.Clean(path))
-	defer f.Close()
-	return err == nil
-}
-
-// IsDir returns whether a path is a directory
-func isDir(path string) bool {
-	info, err := os.Stat(path)
-	if err != nil || os.IsNotExist(err) || !info.IsDir() {
-		return false
-	}
-
-	return true
-}
-
-func isValidURL(s string) bool {
-	u, err := url.ParseRequestURI(s)
-	if err != nil {
-		return false
-	}
-
-	return strings.HasPrefix(u.Scheme, "http")
-}
-
-// DBTenantID converts a tenant ID to a DB-friendly value if set
-func DBTenantID(s string) string {
-	s = tools.Normalize(s)
-	if s != "" {
-		re := regexp.MustCompile(`[^a-zA-Z0-9\_]`)
-		s = re.ReplaceAllString(s, "_")
-		if !strings.HasSuffix(s, "_") {
-			s = s + "_"
-		}
-	}
-
-	return s
-}

config/tags.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/axllent/mailpit/internal/logger"
 	"github.com/axllent/mailpit/internal/tools"
-	"gopkg.in/yaml.v3"
+	"github.com/goccy/go-yaml"
 )
 
 var (

config/utils.go

@@ -0,0 +1,51 @@
+package config
+
+import (
+	"net/url"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+
+	"github.com/axllent/mailpit/internal/tools"
+)
+
+// IsFile returns whether a file exists and is readable
+func isFile(path string) bool {
+	f, err := os.Open(filepath.Clean(path))
+	defer func() { _ = f.Close() }()
+	return err == nil
+}
+
+// IsDir returns whether a path is a directory
+func isDir(path string) bool {
+	info, err := os.Stat(path)
+	if err != nil || os.IsNotExist(err) || !info.IsDir() {
+		return false
+	}
+
+	return true
+}
+
+func isValidURL(s string) bool {
+	u, err := url.ParseRequestURI(s)
+	if err != nil {
+		return false
+	}
+
+	return strings.HasPrefix(u.Scheme, "http")
+}
+
+// DBTenantID converts a tenant ID to a DB-friendly value if set
+func DBTenantID(s string) string {
+	s = tools.Normalize(s)
+	if s != "" {
+		re := regexp.MustCompile(`[^a-zA-Z0-9\_]`)
+		s = re.ReplaceAllString(s, "_")
+		if !strings.HasSuffix(s, "_") {
+			s = s + "_"
+		}
+	}
+
+	return s
+}

config/validators.go

@@ -0,0 +1,290 @@
+package config
+
+import (
+	"errors"
+	"fmt"
+	"net/mail"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
+	"github.com/goccy/go-yaml"
+)
+
+// Parse the --max-age value (if set)
+func parseMaxAge() error {
+	if MaxAge == "" {
+		return nil
+	}
+
+	re := regexp.MustCompile(`^\d+(h|d)$`)
+	if !re.MatchString(MaxAge) {
+		return fmt.Errorf("max-age must be either <int>h for hours or <int>d for days: %s", MaxAge)
+	}
+
+	if strings.HasSuffix(MaxAge, "h") {
+		hours, err := strconv.Atoi(strings.TrimSuffix(MaxAge, "h"))
+		if err != nil {
+			return err
+		}
+
+		MaxAgeInHours = hours
+
+		return nil
+	}
+
+	days, err := strconv.Atoi(strings.TrimSuffix(MaxAge, "d"))
+	if err != nil {
+		return err
+	}
+
+	logger.Log().Debugf("[db] auto-deleting messages older than %s", MaxAge)
+
+	MaxAgeInHours = days * 24
+	return nil
+}
+
+// Parse the SMTPRelayConfigFile (if set)
+func parseRelayConfig(c string) error {
+	if c == "" {
+		return nil
+	}
+
+	c = filepath.Clean(c)
+
+	if !isFile(c) {
+		return fmt.Errorf("[relay] configuration not found or readable: %s", c)
+	}
+
+	data, err := os.ReadFile(c)
+	if err != nil {
+		return err
+	}
+
+	if err := yaml.Unmarshal(data, &SMTPRelayConfig); err != nil {
+		return err
+	}
+
+	if SMTPRelayConfig.Host == "" {
+		return errors.New("[relay] host not set")
+	}
+
+	// DEPRECATED 2024/03/12
+	if SMTPRelayConfig.RecipientAllowlist != "" {
+		logger.Log().Warn("[relay] 'recipient-allowlist' is deprecated, use 'allowed-recipients' instead")
+		if SMTPRelayConfig.AllowedRecipients == "" {
+			SMTPRelayConfig.AllowedRecipients = SMTPRelayConfig.RecipientAllowlist
+		}
+	}
+
+	return nil
+}
+
+// Validate the SMTPRelayConfig (if Host is set)
+func validateRelayConfig() error {
+	if SMTPRelayConfig.Host == "" {
+		return nil
+	}
+
+	if SMTPRelayConfig.Port == 0 {
+		SMTPRelayConfig.Port = 25 // default
+	}
+
+	SMTPRelayConfig.Auth = strings.ToLower(SMTPRelayConfig.Auth)
+
+	if SMTPRelayConfig.Auth == "" || SMTPRelayConfig.Auth == "none" || SMTPRelayConfig.Auth == "false" {
+		SMTPRelayConfig.Auth = "none"
+	} else if SMTPRelayConfig.Auth == "plain" {
+		if SMTPRelayConfig.Username == "" || SMTPRelayConfig.Password == "" {
+			return fmt.Errorf("[relay] host username or password not set for PLAIN authentication")
+		}
+	} else if SMTPRelayConfig.Auth == "login" {
+		SMTPRelayConfig.Auth = "login"
+		if SMTPRelayConfig.Username == "" || SMTPRelayConfig.Password == "" {
+			return fmt.Errorf("[relay] host username or password not set for LOGIN authentication")
+		}
+	} else if strings.HasPrefix(SMTPRelayConfig.Auth, "cram") {
+		SMTPRelayConfig.Auth = "cram-md5"
+		if SMTPRelayConfig.Username == "" || SMTPRelayConfig.Secret == "" {
+			return fmt.Errorf("[relay] host username or secret not set for CRAM-MD5 authentication")
+		}
+	} else {
+		return fmt.Errorf("[relay] authentication method not supported: %s", SMTPRelayConfig.Auth)
+	}
+
+	if SMTPRelayConfig.AllowedRecipients != "" {
+		re, err := regexp.Compile(SMTPRelayConfig.AllowedRecipients)
+		if err != nil {
+			return fmt.Errorf("[relay] failed to compile recipient allowlist regexp: %s", err.Error())
+		}
+
+		SMTPRelayConfig.AllowedRecipientsRegexp = re
+		logger.Log().Infof("[relay] recipient allowlist is active with the following regexp: %s", SMTPRelayConfig.AllowedRecipients)
+	}
+
+	if SMTPRelayConfig.BlockedRecipients != "" {
+		re, err := regexp.Compile(SMTPRelayConfig.BlockedRecipients)
+		if err != nil {
+			return fmt.Errorf("[relay] failed to compile recipient blocklist regexp: %s", err.Error())
+		}
+
+		SMTPRelayConfig.BlockedRecipientsRegexp = re
+		logger.Log().Infof("[relay] recipient blocklist is active with the following regexp: %s", SMTPRelayConfig.BlockedRecipients)
+	}
+
+	if SMTPRelayConfig.OverrideFrom != "" {
+		m, err := mail.ParseAddress(SMTPRelayConfig.OverrideFrom)
+		if err != nil {
+			return fmt.Errorf("[relay] override-from is not a valid email address: %s", SMTPRelayConfig.OverrideFrom)
+		}
+
+		SMTPRelayConfig.OverrideFrom = m.Address
+	}
+
+	if SMTPRelayConfig.STARTTLS && SMTPRelayConfig.TLS {
+		return fmt.Errorf("[relay] TLS & STARTTLS cannot be required together")
+	}
+
+	ReleaseEnabled = true
+
+	logger.Log().Infof("[relay] enabling message relaying via %s:%d", SMTPRelayConfig.Host, SMTPRelayConfig.Port)
+
+	return nil
+}
+
+// Parse the SMTPForwardConfigFile (if set)
+func parseForwardConfig(c string) error {
+	if c == "" {
+		return nil
+	}
+
+	c = filepath.Clean(c)
+
+	if !isFile(c) {
+		return fmt.Errorf("[forward] configuration not found or readable: %s", c)
+	}
+
+	data, err := os.ReadFile(c)
+	if err != nil {
+		return err
+	}
+
+	if err := yaml.Unmarshal(data, &SMTPForwardConfig); err != nil {
+		return err
+	}
+
+	if SMTPForwardConfig.Host == "" {
+		return errors.New("[forward] host not set")
+	}
+
+	return nil
+}
+
+// Validate the SMTPForwardConfig (if Host is set)
+func validateForwardConfig() error {
+	if SMTPForwardConfig.Host == "" {
+		return nil
+	}
+
+	if SMTPForwardConfig.Port == 0 {
+		SMTPForwardConfig.Port = 25 // default
+	}
+
+	SMTPForwardConfig.Auth = strings.ToLower(SMTPForwardConfig.Auth)
+
+	if SMTPForwardConfig.Auth == "" || SMTPForwardConfig.Auth == "none" || SMTPForwardConfig.Auth == "false" {
+		SMTPForwardConfig.Auth = "none"
+	} else if SMTPForwardConfig.Auth == "plain" {
+		if SMTPForwardConfig.Username == "" || SMTPForwardConfig.Password == "" {
+			return fmt.Errorf("[forward] host username or password not set for PLAIN authentication")
+		}
+	} else if SMTPForwardConfig.Auth == "login" {
+		SMTPForwardConfig.Auth = "login"
+		if SMTPForwardConfig.Username == "" || SMTPForwardConfig.Password == "" {
+			return fmt.Errorf("[forward] host username or password not set for LOGIN authentication")
+		}
+	} else if strings.HasPrefix(SMTPForwardConfig.Auth, "cram") {
+		SMTPForwardConfig.Auth = "cram-md5"
+		if SMTPForwardConfig.Username == "" || SMTPForwardConfig.Secret == "" {
+			return fmt.Errorf("[forward] host username or secret not set for CRAM-MD5 authentication")
+		}
+	} else {
+		return fmt.Errorf("[forward] authentication method not supported: %s", SMTPForwardConfig.Auth)
+	}
+
+	if SMTPForwardConfig.To == "" {
+		return errors.New("[forward] To addresses missing")
+	}
+
+	to := []string{}
+	addresses := strings.Split(SMTPForwardConfig.To, ",")
+	for _, a := range addresses {
+		a = strings.TrimSpace(a)
+		m, err := mail.ParseAddress(a)
+		if err != nil {
+			return fmt.Errorf("[forward] To address is not a valid email address: %s", a)
+		}
+		to = append(to, m.Address)
+	}
+
+	if len(to) == 0 {
+		return errors.New("[forward] no valid To addresses found")
+	}
+
+	// overwrite the To field with the cleaned up list
+	SMTPForwardConfig.To = strings.Join(to, ",")
+
+	if SMTPForwardConfig.OverrideFrom != "" {
+		m, err := mail.ParseAddress(SMTPForwardConfig.OverrideFrom)
+		if err != nil {
+			return fmt.Errorf("[forward] override-from is not a valid email address: %s", SMTPForwardConfig.OverrideFrom)
+		}
+
+		SMTPForwardConfig.OverrideFrom = m.Address
+	}
+
+	if SMTPForwardConfig.STARTTLS && SMTPForwardConfig.TLS {
+		return fmt.Errorf("[forward] TLS & STARTTLS cannot be required together")
+	}
+
+	logger.Log().Infof("[forward] enabling message forwarding to %s via %s:%d", SMTPForwardConfig.To, SMTPForwardConfig.Host, SMTPForwardConfig.Port)
+
+	return nil
+}
+
+func parseChaosTriggers() error {
+	if ChaosTriggers == "" {
+		return nil
+	}
+
+	re := regexp.MustCompile(`^([a-zA-Z0-0]+):(\d\d\d):(\d+(\.\d)?)$`)
+
+	parts := strings.Split(ChaosTriggers, ",")
+	for _, p := range parts {
+		p = strings.TrimSpace(p)
+		if !re.MatchString(p) {
+			return fmt.Errorf("invalid argument: %s", p)
+		}
+
+		matches := re.FindAllStringSubmatch(p, 1)
+		key := matches[0][1]
+		errorCode, err := strconv.Atoi(matches[0][2])
+		if err != nil {
+			return err
+		}
+		probability, err := strconv.Atoi(matches[0][3])
+		if err != nil {
+			return err
+		}
+
+		if err := chaos.Set(key, errorCode, probability); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

esbuild.config.mjs

@@ -1,38 +1,39 @@
-import * as esbuild from 'esbuild'
-import pluginVue from 'esbuild-plugin-vue-next'
-import { sassPlugin } from 'esbuild-sass-plugin'
+import * as esbuild from "esbuild";
+import pluginVue from "esbuild-plugin-vue-next";
+import { sassPlugin } from "esbuild-sass-plugin";
 
-const doWatch = process.env.WATCH == 'true' ? true : false;
-const doMinify = process.env.MINIFY == 'true' ? true : false;
+const doWatch = process.env.WATCH === "true";
+const doMinify = process.env.MINIFY === "true";
 
-const ctx = await esbuild.context(
-    {
-        entryPoints: [
-            "server/ui-src/app.js",
-            "server/ui-src/docs.js"
-        ],
-        bundle: true,
-        minify: doMinify,
-        sourcemap: false,
-        define: {
-            '__VUE_OPTIONS_API__': 'true',
-            '__VUE_PROD_DEVTOOLS__': 'false',
-            '__VUE_PROD_HYDRATION_MISMATCH_DETAILS__': 'false',
-        },
-        outdir: "server/ui/dist/",
-        plugins: [pluginVue(), sassPlugin()],
-        loader: {
-            ".svg": "file",
-            ".woff": "file",
-            ".woff2": "file",
-        },
-        logLevel: "info"
-    }
-)
+const ctx = await esbuild.context({
+	entryPoints: ["server/ui-src/app.js", "server/ui-src/docs.js"],
+	bundle: true,
+	minify: doMinify,
+	sourcemap: false,
+	define: {
+		__VUE_OPTIONS_API__: "true",
+		__VUE_PROD_DEVTOOLS__: "false",
+		__VUE_PROD_HYDRATION_MISMATCH_DETAILS__: "false",
+	},
+	outdir: "server/ui/dist/",
+	plugins: [
+		pluginVue(),
+		sassPlugin({
+			silenceDeprecations: ["import"],
+			quietDeps: true,
+		}),
+	],
+	loader: {
+		".svg": "file",
+		".woff": "file",
+		".woff2": "file",
+	},
+	logLevel: "info",
+});
 
 if (doWatch) {
-    await ctx.watch()
+	await ctx.watch();
 } else {
-    await ctx.rebuild()
-    ctx.dispose()
+	await ctx.rebuild();
+	ctx.dispose();
 }

eslint.config.js

@@ -0,0 +1,76 @@
+import eslintConfigPrettier from "eslint-config-prettier/flat";
+import globals from "globals";
+import { includeIgnoreFile } from "@eslint/compat";
+import js from "@eslint/js";
+import vue from "eslint-plugin-vue";
+import { fileURLToPath } from "node:url";
+
+const gitignorePath = fileURLToPath(new URL(".gitignore", import.meta.url));
+
+export default [
+	/* Use .gitignore to prevent linting of irrelevant files */
+	includeIgnoreFile(gitignorePath, ".gitignore"),
+
+	/* ESLint's recommended rules */
+	{
+		files: ["**/*.js", "**/*.vue"],
+		languageOptions: { globals: { ...globals.browser, ...globals.node } },
+		rules: js.configs.recommended.rules,
+	},
+
+	/* Vue-specific rules */
+	...vue.configs["flat/recommended"],
+
+	/* Prettier is responsible for formatting, so we disable conflicting rules */
+	eslintConfigPrettier,
+
+	/* Our custom rules */
+	{
+		rules: {
+			/* Always use arrow functions for tidiness and consistency */
+			"prefer-arrow-callback": "error",
+
+			/* Always use camelCase for variable names */
+			camelcase: [
+				"error",
+				{
+					ignoreDestructuring: false,
+					ignoreGlobals: true,
+					ignoreImports: false,
+					properties: "never",
+				},
+			],
+
+			/* The default case in switch statements must always be last */
+			"default-case-last": "error",
+
+			/* Always use dot notation where possible (e.g. `obj.val` over `obj['val']`) */
+			"dot-notation": "error",
+
+			/* Always use `===` and `!==` for comparisons unless unambiguous */
+			eqeqeq: ["error", "smart"],
+
+			/* Never use `eval()` as it violates our CSP and can lead to security issues */
+			"no-eval": "error",
+			"no-implied-eval": "error",
+
+			/* Prevents accidental use of template literals in plain strings, e.g. "my ${var}" */
+			"no-template-curly-in-string": "error",
+
+			/* Avoid unnecessary ternary operators */
+			"no-unneeded-ternary": "error",
+
+			/* Avoid unused expressions that have no purpose */
+			"no-unused-expressions": "error",
+
+			/* Always use `const` or `let` to make scope behaviour clear */
+			"no-var": "error",
+
+			/* Always use shorthand syntax for objects where possible, e.g. { a, b() { } } */
+			"object-shorthand": "error",
+
+			/* Always use `const` for variables that are never reassigned */
+			"prefer-const": "error",
+		},
+	},
+];

go.mod

@@ -1,67 +1,73 @@
 module github.com/axllent/mailpit
 
-go 1.23
-
-toolchain go1.23.2
+go 1.24.3
 
 require (
-	github.com/PuerkitoBio/goquery v1.10.0
+	github.com/PuerkitoBio/goquery v1.10.3
 	github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de
-	github.com/axllent/semver v0.0.1
-	github.com/gomarkdown/markdown v0.0.0-20241105142532-d03b89096d81
+	github.com/axllent/ghru/v2 v2.0.2
+	github.com/axllent/semver v1.0.0
+	github.com/goccy/go-yaml v1.18.0
+	github.com/gomarkdown/markdown v0.0.0-20250731182530-5d03d1963446
 	github.com/gorilla/mux v1.8.1
 	github.com/gorilla/websocket v1.5.3
-	github.com/jhillyerd/enmime v1.3.0
-	github.com/klauspost/compress v1.17.11
-	github.com/kovidgoyal/imaging v1.6.3
+	github.com/jhillyerd/enmime/v2 v2.2.0
+	github.com/klauspost/compress v1.18.0
+	github.com/kovidgoyal/imaging v1.6.4
 	github.com/leporo/sqlf v1.4.0
-	github.com/lithammer/shortuuid/v4 v4.0.0
+	github.com/lithammer/shortuuid/v4 v4.2.0
 	github.com/mneis/go-telnet v0.0.0-20221017141824-6f643e477c62
-	github.com/rqlite/gorqlite v0.0.0-20241013203532-4385768ae85d
+	github.com/prometheus/client_golang v1.23.0
+	github.com/rqlite/gorqlite v0.0.0-20250609141355-ac86a4a1c9a8
 	github.com/sirupsen/logrus v1.9.3
-	github.com/spf13/cobra v1.8.1
-	github.com/spf13/pflag v1.0.5
-	github.com/tg123/go-htpasswd v1.2.3
-	github.com/vanng822/go-premailer v1.22.0
-	golang.org/x/net v0.30.0
-	golang.org/x/text v0.20.0
-	golang.org/x/time v0.8.0
-	gopkg.in/yaml.v3 v3.0.1
-	modernc.org/sqlite v1.33.1
+	github.com/spf13/cobra v1.9.1
+	github.com/spf13/pflag v1.0.7
+	github.com/tg123/go-htpasswd v1.2.4
+	github.com/vanng822/go-premailer v1.25.0
+	golang.org/x/crypto v0.41.0
+	golang.org/x/net v0.43.0
+	golang.org/x/text v0.28.0
+	golang.org/x/time v0.12.0
+	modernc.org/sqlite v1.38.2
 )
 
 require (
 	github.com/GehirnInc/crypt v0.0.0-20230320061759-8cc1b52080c5 // indirect
-	github.com/andybalholm/cascadia v1.3.2 // indirect
+	github.com/andybalholm/cascadia v1.3.3 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/fatih/color v1.18.0 // indirect
 	github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/gorilla/css v1.0.1 // indirect
-	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/inbucket/html2text v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/jaytaylor/html2text v0.0.0-20230321000545-74c2419ad056 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/ncruces/go-strftime v0.1.9 // indirect
-	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/olekukonko/errors v1.1.0 // indirect
+	github.com/olekukonko/ll v0.0.9 // indirect
+	github.com/olekukonko/tablewriter v1.0.9 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.65.0 // indirect
+	github.com/prometheus/procfs v0.17.0 // indirect
 	github.com/reiver/go-oi v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/vanng822/css v1.0.1 // indirect
-	golang.org/x/crypto v0.29.0 // indirect
-	golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c // indirect
-	golang.org/x/image v0.22.0 // indirect
-	golang.org/x/sys v0.27.0 // indirect
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
-	modernc.org/gc/v3 v3.0.0-20241004144649-1aea3fae8852 // indirect
-	modernc.org/libc v1.61.0 // indirect
-	modernc.org/mathutil v1.6.0 // indirect
-	modernc.org/memory v1.8.0 // indirect
-	modernc.org/strutil v1.2.0 // indirect
-	modernc.org/token v1.1.0 // indirect
+	golang.org/x/exp v0.0.0-20250808145144-a408d31f581a // indirect
+	golang.org/x/image v0.30.0 // indirect
+	golang.org/x/mod v0.27.0 // indirect
+	golang.org/x/sys v0.35.0 // indirect
+	google.golang.org/protobuf v1.36.7 // indirect
+	modernc.org/libc v1.66.6 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
 )

go.sum

@@ -1,34 +1,42 @@
 github.com/GehirnInc/crypt v0.0.0-20230320061759-8cc1b52080c5 h1:IEjq88XO4PuBDcvmjQJcQGg+w+UaafSy8G5Kcb5tBhI=
 github.com/GehirnInc/crypt v0.0.0-20230320061759-8cc1b52080c5/go.mod h1:exZ0C/1emQJAw5tHOaUDyY1ycttqBAPcxuzf7QbY6ec=
-github.com/PuerkitoBio/goquery v1.9.2/go.mod h1:GHPCaP0ODyyxqcNoFGYlAprUFH81NuRPd0GX3Zu2Mvk=
-github.com/PuerkitoBio/goquery v1.10.0 h1:6fiXdLuUvYs2OJSvNRqlNPoBm6YABE226xrbavY5Wv4=
-github.com/PuerkitoBio/goquery v1.10.0/go.mod h1:TjZZl68Q3eGHNBA8CWaxAN7rOU1EbDz3CWuolcO5Yu4=
-github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
-github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
+github.com/PuerkitoBio/goquery v1.10.3 h1:pFYcNSqHxBD06Fpj/KsbStFRsgRATgnf3LeXiUkhzPo=
+github.com/PuerkitoBio/goquery v1.10.3/go.mod h1:tMUX0zDMHXYlAQk6p35XxQMqMweEKB7iK7iLNd4RH4Y=
+github.com/andybalholm/cascadia v1.3.3 h1:AG2YHrzJIm4BZ19iwJ/DAua6Btl3IwJX+VI4kktS1LM=
+github.com/andybalholm/cascadia v1.3.3/go.mod h1:xNd9bqTn98Ln4DwST8/nG+H0yuB8Hmgu1YHNnWw0GeA=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de h1:FxWPpzIjnTlhPwqqXc4/vE0f7GvRjuAsbW+HOIe8KnA=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de/go.mod h1:DCaWoUhZrYW9p1lxo/cm8EmUOOzAPSEZNGF2DK1dJgw=
-github.com/axllent/semver v0.0.1 h1:QqF+KSGxgj8QZzSXAvKFqjGWE5792ksOnQhludToK8E=
-github.com/axllent/semver v0.0.1/go.mod h1:2xSPzvG8n9mRfdtxSvWvfTfQGWfHsMsHO1iZnKATMSc=
+github.com/axllent/ghru/v2 v2.0.2 h1:xalJupjJAU8Kcs39AwpG53qbcbi3+WKM98BEoQWf/zU=
+github.com/axllent/ghru/v2 v2.0.2/go.mod h1:seMMjx8/0r5ZAL7c0vwTPIRoyN0AoTUqAylZEWZWGK4=
+github.com/axllent/semver v1.0.0 h1:FDekA0alnMed5bWVWjUwBS+6QouZZkmPXsGVmOfjWOg=
+github.com/axllent/semver v1.0.0/go.mod h1:ySHHYLyFX3vKAALmaO8TOOJkzGRsUNmzFiIWwPm8li8=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a h1:MISbI8sU/PSK/ztvmWKFcI7UGb5/HQT7B+i3a2myKgI=
 github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a/go.mod h1:2GxOXOlEPAMFPfp014mK1SWq8G8BN8o7/dfYqJrVGn8=
-github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
-github.com/go-test/deep v1.1.0 h1:WOcxcdHcvdgThNXjw0t76K42FXTU7HpNQWHpA2HHNlg=
-github.com/go-test/deep v1.1.0/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
+github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
+github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
+github.com/go-test/deep v1.1.1 h1:0r/53hagsehfO4bzD2Pgr/+RgHqhmf+k1Bpse2cTu1U=
+github.com/go-test/deep v1.1.1/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
+github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw=
+github.com/goccy/go-yaml v1.18.0/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
 github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f h1:3BSP1Tbs2djlpprl7wCLuiqMaUh5SJkkzI2gDs+FgLs=
 github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f/go.mod h1:Pcatq5tYkCW2Q6yrR2VRHlbHpZ/R4/7qyL1TCF7vl14=
-github.com/gomarkdown/markdown v0.0.0-20241105142532-d03b89096d81 h1:5lyLWsV+qCkoYqsKUDuycESh9DEIPVKN6iCFeL7ag50=
-github.com/gomarkdown/markdown v0.0.0-20241105142532-d03b89096d81/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
+github.com/gomarkdown/markdown v0.0.0-20250731182530-5d03d1963446 h1:DCrj2T/IjH7beow847X2wc/lQRAQlvUQYxCyZE9wA+E=
+github.com/gomarkdown/markdown v0.0.0-20250731182530-5d03d1963446/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd h1:gbpYu9NMq8jhDVbvlGkMFWCjLFlqqEZjEmObmhUy6Vo=
-github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
-github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/css v1.0.1 h1:ntNaBIghp6JmvWnxbZKANoLyuXTPZ4cAMlo6RyhlbO8=
@@ -37,32 +45,26 @@ github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
 github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
-github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
+github.com/inbucket/html2text v1.0.0 h1:N5kza++4uBBDJ2Z3KUnTRyPNoBcW+YfOgNiNmNB+sgs=
+github.com/inbucket/html2text v1.0.0/go.mod h1:5TrhXQKGU+LXurODaSm55Y9eXoPBRnYiOz4x2XfUoJU=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
-github.com/jaytaylor/html2text v0.0.0-20230321000545-74c2419ad056 h1:iCHtR9CQyktQ5+f3dMVZfwD2KWJUgm7M0gdL9NGr8KA=
-github.com/jaytaylor/html2text v0.0.0-20230321000545-74c2419ad056/go.mod h1:CVKlgaMiht+LXvHG173ujK6JUhZXKb2u/BQtjPDIvyk=
-github.com/jhillyerd/enmime v1.3.0 h1:LV5kzfLidiOr8qRGIpYYmUZCnhrPbcFAnAFUnWn99rw=
-github.com/jhillyerd/enmime v1.3.0/go.mod h1:6c6jg5HdRRV2FtvVL69LjiX1M8oE0xDX9VEhV3oy4gs=
-github.com/klauspost/compress v1.17.11 h1:In6xLpyWOi1+C7tXUUWv2ot1QvBjxevKAaI6IXrJmUc=
-github.com/klauspost/compress v1.17.11/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90U12bZKk7uwG0=
-github.com/kovidgoyal/imaging v1.6.3 h1:iNPpv7ygiaB/NOztc6APMT7yr9UwBS+rOZwIbAdtyY8=
-github.com/kovidgoyal/imaging v1.6.3/go.mod h1:sHvcLOOVhJuto2IoNdPLEqnAUoL5ZfHEF0PpNH+882g=
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+modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
+modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
+modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
+modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
+modernc.org/libc v1.66.6 h1:RyQpwAhM/19nXD8y3iejM/AjmKwY2TjxZTlUWTsWw2U=
+modernc.org/libc v1.66.6/go.mod h1:j8z0EYAuumoMQ3+cWXtmw6m+LYn3qm8dcZDFtFTSq+M=
+modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
+modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
+modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
+modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8=
+modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.38.2 h1:Aclu7+tgjgcQVShZqim41Bbw9Cho0y/7WzYptXqkEek=
+modernc.org/sqlite v1.38.2/go.mod h1:cPTJYSlgg3Sfg046yBShXENNtPrWrDX8bsbAQBzgQ5E=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
 modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
 modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

install.sh

@@ -1,98 +1,214 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
-GH_REPO="axllent/mailpit"
-TIMEOUT=90
+# This script will install the latest release of Mailpit.
 
-set -e
+# Check dependencies is installed
+for cmd in curl tar; do
+    if ! command -v "$cmd" >/dev/null 2>&1; then
+        echo "Then $cmd command is required but not installed."
+        echo "Please install $cmd and try again."
+        exit 1
+    fi
+done
 
-VERSION=$(curl --silent --location --max-time "${TIMEOUT}" "https://api.github.com/repos/${GH_REPO}/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
-if [ $? -ne 0 ]; then
-    echo -ne "\nThere was an error trying to check what is the latest version of Mailpit.\nPlease try again later.\n"
-    exit 1
-fi
-
-# detect the platform
-OS="$(uname)"
-case $OS in
-Linux)
-    OS='linux'
-    ;;
-FreeBSD)
-    OS='freebsd'
-    echo 'OS not supported'
-    exit 2
-    ;;
-NetBSD)
-    OS='netbsd'
-    echo 'OS not supported'
-    exit 2
-    ;;
-OpenBSD)
-    OS='openbsd'
-    echo 'OS not supported'
-    exit 2
-    ;;
-Darwin)
-    OS='darwin'
-    ;;
-SunOS)
-    OS='solaris'
-    echo 'OS not supported'
-    exit 2
-    ;;
+# Check if the OS is supported.
+OS=
+case "$(uname -s)" in
+Linux) OS="linux" ;;
+Darwin) OS="Darwin" ;;
 *)
-    echo 'OS not supported'
+    echo "OS not supported."
     exit 2
     ;;
 esac
 
-# detect the arch
-OS_type="$(uname -m)"
-case "$OS_type" in
+# Detect the architecture of the OS.
+OS_ARCH=
+case "$(uname -m)" in
 x86_64 | amd64)
-    OS_type='amd64'
+    OS_ARCH="amd64"
     ;;
 i?86 | x86)
-    OS_type='386'
+    OS_ARCH="386"
     ;;
 aarch64 | arm64)
-    OS_type='arm64'
+    OS_ARCH="arm64"
     ;;
 *)
-    echo 'OS type not supported'
+    echo "OS architecture not supported."
     exit 2
     ;;
 esac
 
-GH_REPO_BIN="mailpit-${OS}-${OS_type}.tar.gz"
+GH_REPO="axllent/mailpit"
+INSTALL_PATH="${INSTALL_PATH:-/usr/local/bin}"
+TIMEOUT=90
+# This is used to authenticate with the GitHub API. (Fix the public rate limiting issue)
+# Try the GITHUB_TOKEN environment variable is set globally.
+GITHUB_API_TOKEN="${GITHUB_TOKEN:-}"
 
-#create tmp directory and move to it with macOS compatibility fallback
-tmp_dir=$(mktemp -d 2>/dev/null || mktemp -d -t 'mailpit-install.XXXXXXXXXX')
-cd "$tmp_dir"
+# Update the default values if the user has set.
+while [ $# -gt 0 ]; do
+    case $1 in
+    --install-path)
+        shift
+        case "$1" in
+        */*)
+            # Remove trailing slashes from the path.
+            INSTALL_PATH="$(echo "$1" | sed 's#/\+$##')"
+            [ -z "$INSTALL_PATH" ] && INSTALL_PATH="/"
+            ;;
+        esac
+        ;;
+    --auth | --auth-token | --github-token | --token)
+        shift
+        case "$1" in
+        gh*)
+            GITHUB_API_TOKEN="$1"
+            ;;
+        esac
+        ;;
+    *) ;;
+    esac
+    shift
+done
 
-echo "Downloading Mailpit $VERSION"
-LINK="https://github.com/${GH_REPO}/releases/download/${VERSION}/${GH_REPO_BIN}"
+# Description of the sort parameters for curl command.
+# -s: Silent mode.
+# -f: Fail silently on server errors.
+# -L: Follow redirects.
+# -m: Set maximum time allowed for the transfer.
 
-curl --silent --location --max-time "${TIMEOUT}" "${LINK}" | tar zxf - || {
-    echo "Error downloading"
-    exit 2
-}
+if [ -n "$GITHUB_API_TOKEN" ] && [ "${#GITHUB_API_TOKEN}" -gt 36 ]; then
+    CURL_OUTPUT="$(curl -sfL -m $TIMEOUT -H "Authorization: Bearer $GITHUB_API_TOKEN" https://api.github.com/repos/${GH_REPO}/releases/latest)"
+    EXIT_CODE=$?
+else
+    CURL_OUTPUT="$(curl -sfL -m $TIMEOUT https://api.github.com/repos/${GH_REPO}/releases/latest)"
+    EXIT_CODE=$?
+fi
 
-mkdir -p /usr/local/bin || exit 2
-cp mailpit /usr/local/bin/ || exit 2
-chmod 755 /usr/local/bin/mailpit || exit 2
-case "$OS" in
-'linux')
-    chown root:root /usr/local/bin/mailpit || exit 2
-    ;;
-'freebsd' | 'openbsd' | 'netbsd' | 'darwin')
-    chown root:wheel /usr/local/bin/mailpit || exit 2
-    ;;
+VERSION=""
+if [ $EXIT_CODE -eq 0 ]; then
+    # Extracts the latest version using jq, awk, or sed.
+    if command -v jq >/dev/null 2>&1; then
+        # Use jq -n because the output is not a valid JSON in sh.
+        VERSION=$(jq -n "$CURL_OUTPUT" | jq -r '.tag_name')
+    elif command -v awk >/dev/null 2>&1; then
+        VERSION=$(echo "$CURL_OUTPUT" | awk -F: '$1 ~ /tag_name/ {gsub(/[^v0-9\.]+/, "", $2) ;print $2; exit}')
+    elif command -v sed >/dev/null 2>&1; then
+        VERSION=$(echo "$CURL_OUTPUT" | sed -n 's/.*"tag_name": *"\([^"]*\)".*/\1/p')
+    else
+        EXIT_CODE=3
+    fi
+fi
+
+# Validate the version.
+case "$VERSION" in
+v[0-9][0-9\.]*) ;;
 *)
-    echo 'OS not supported'
-    exit 2
+    echo "There was an error trying to check what is the latest version of Mailpit."
+    echo "Please try again later."
+    exit $EXIT_CODE
     ;;
 esac
 
-rm -rf "$tmp_dir"
-echo "Installed successfully to /usr/local/bin/mailpit"
+TEMP_DIR="$(mktemp -qd)"
+EXIT_CODE=$?
+# Ensure the temporary directory exists and is a directory.
+if [ -z "$TEMP_DIR" ] || [ ! -d "$TEMP_DIR" ]; then
+    echo "ERROR: Creating temporary directory."
+    exit $EXIT_CODE
+fi
+
+GH_REPO_BIN="mailpit-${OS}-${OS_ARCH}.tar.gz"
+if [ "$INSTALL_PATH" = "/" ]; then
+    INSTALL_BIN_PATH="/mailpit"
+else
+    INSTALL_BIN_PATH="${INSTALL_PATH}/mailpit"
+fi
+cd "$TEMP_DIR" || EXIT_CODE=$?
+if [ $EXIT_CODE -eq 0 ]; then
+    # Download the latest release.
+    #
+    # Description of the sort parameters for curl command.
+    # -s: Silent mode.
+    # -f: Fail silently on server errors.
+    # -L: Follow redirects.
+    # -m: Set maximum time allowed for the transfer.
+    # -o: Write output to a file instead of stdout.
+    curl -sfL -m $TIMEOUT -o "${GH_REPO_BIN}" "https://github.com/${GH_REPO}/releases/download/${VERSION}/${GH_REPO_BIN}"
+    EXIT_CODE=$?
+
+    # The following conditions check each step of the installation.
+    # If there is an error in any of the steps, an error message is printed.
+
+    if [ $EXIT_CODE -eq 0 ]; then
+        if ! [ -f "${GH_REPO_BIN}" ]; then
+            EXIT_CODE=1
+            echo "ERROR: Downloading latest release."
+        fi
+    fi
+
+    if [ $EXIT_CODE -eq 0 ]; then
+        tar zxf "$GH_REPO_BIN"
+        EXIT_CODE=$?
+        if [ $EXIT_CODE -ne 0 ]; then
+            echo "ERROR: Extracting \"${GH_REPO_BIN}\"."
+        fi
+    fi
+
+    if [ $EXIT_CODE -eq 0 ] && [ ! -d "$INSTALL_PATH" ]; then
+        mkdir -p "${INSTALL_PATH}"
+        EXIT_CODE=$?
+        if [ $EXIT_CODE -ne 0 ]; then
+            echo "ERROR: Creating \"${INSTALL_PATH}\" directory."
+        fi
+    fi
+
+    if [ $EXIT_CODE -eq 0 ]; then
+        cp mailpit "$INSTALL_BIN_PATH"
+        EXIT_CODE=$?
+        if [ $EXIT_CODE -ne 0 ]; then
+            echo "ERROR: Copying mailpit to \"${INSTALL_PATH}\" directory."
+        fi
+    fi
+
+    if [ $EXIT_CODE -eq 0 ]; then
+        chmod 755 "$INSTALL_BIN_PATH"
+        EXIT_CODE=$?
+        if [ $EXIT_CODE -ne 0 ]; then
+            echo "ERROR: Setting permissions for \"$INSTALL_BIN_PATH\" binary."
+        fi
+    fi
+
+    # Set the owner and group to root:root if the script is run as root.
+    if [ $EXIT_CODE -eq 0 ] && [ "$(id -u)" -eq "0" ]; then
+        OWNER="root"
+        GROUP="root"
+        # Set the OWNER, GROUP variable when the OS not use the default root:root.
+        case "$OS" in
+        darwin) GROUP="wheel" ;;
+        *) ;;
+        esac
+
+        chown "${OWNER}:${GROUP}" "$INSTALL_BIN_PATH"
+        EXIT_CODE=$?
+        if [ $EXIT_CODE -ne 0 ]; then
+            echo "ERROR: Setting ownership for \"$INSTALL_BIN_PATH\" binary."
+        fi
+    fi
+else
+    echo "ERROR: Changing to temporary directory."
+    exit $EXIT_CODE
+fi
+
+# Cleanup the temporary directory.
+rm -rf "$TEMP_DIR"
+# Check the EXIT_CODE variable, and print the success or error message.
+if [ $EXIT_CODE -ne 0 ]; then
+    echo "There was an error installing Mailpit."
+    exit $EXIT_CODE
+fi
+
+echo "Installed successfully to \"$INSTALL_BIN_PATH\"."
+exit 0

internal/auth/auth.go

@@ -11,6 +11,8 @@ import (
 var (
 	// UICredentials passwords
 	UICredentials *htpasswd.File
+	// SendAPICredentials passwords
+	SendAPICredentials *htpasswd.File
 	// SMTPCredentials passwords
 	SMTPCredentials *htpasswd.File
 	// POP3Credentials passwords
@@ -36,6 +38,25 @@ func SetUIAuth(s string) error {
 	return nil
 }
 
+// SetSendAPIAuth will set Send API credentials
+func SetSendAPIAuth(s string) error {
+	var err error
+
+	credentials := credentialsFromString(s)
+	if len(credentials) == 0 {
+		return nil
+	}
+
+	r := strings.NewReader(strings.Join(credentials, "\n"))
+
+	SendAPICredentials, err = htpasswd.NewFromReader(r, htpasswd.DefaultSystems, nil)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 // SetSMTPAuth will set SMTP credentials
 func SetSMTPAuth(s string) error {
 	var err error

internal/dump/dump.go

@@ -0,0 +1,163 @@
+// Package dump is used to export all messages from mailpit into a directory
+package dump
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"os"
+	"path"
+	"regexp"
+	"strings"
+
+	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/storage"
+	"github.com/axllent/mailpit/internal/tools"
+	"github.com/axllent/mailpit/server/apiv1"
+)
+
+var (
+	linkRe = regexp.MustCompile(`(?i)^https?:\/\/`)
+
+	outDir string
+
+	// Base URL of mailpit instance
+	base string
+
+	// URL is the base URL of a remove Mailpit instance
+	URL string
+
+	summary = []storage.MessageSummary{}
+)
+
+// Sync will sync all messages from the specified database or API to the specified output directory
+func Sync(d string) error {
+
+	outDir = path.Clean(d)
+
+	if URL != "" {
+		if !linkRe.MatchString(URL) {
+			return errors.New("invalid URL")
+		}
+
+		base = strings.TrimRight(URL, "/") + "/"
+	}
+
+	if base == "" && config.Database == "" {
+		return errors.New("no database or API URL specified")
+	}
+
+	if !tools.IsDir(outDir) {
+		if err := os.MkdirAll(outDir, 0755); /* #nosec */ err != nil {
+			return err
+		}
+	}
+
+	if err := loadIDs(); err != nil {
+		return err
+	}
+
+	if err := saveMessages(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// LoadIDs will load all message IDs from the specified database or API
+func loadIDs() error {
+	if base != "" {
+		// remote
+		logger.Log().Debugf("Fetching messages summary from %s", base)
+		res, err := http.Get(base + "api/v1/messages?limit=0")
+
+		if err != nil {
+			return err
+		}
+
+		body, err := io.ReadAll(res.Body)
+
+		if err != nil {
+			return err
+		}
+
+		var data apiv1.MessagesSummary
+		if err := json.Unmarshal(body, &data); err != nil {
+			return err
+		}
+
+		summary = data.Messages
+
+	} else {
+		// make sure the database isn't pruned while open
+		config.MaxMessages = 0
+
+		var err error
+		// local database
+		if err = storage.InitDB(); err != nil {
+			return err
+		}
+
+		logger.Log().Debugf("Fetching messages summary from %s", config.Database)
+
+		summary, err = storage.List(0, 0, 0)
+		if err != nil {
+			return err
+		}
+	}
+
+	if len(summary) == 0 {
+		return errors.New("no messages found")
+	}
+
+	return nil
+}
+
+func saveMessages() error {
+	for _, m := range summary {
+		out := path.Join(outDir, m.ID+".eml")
+
+		// skip if message exists
+		if tools.IsFile(out) {
+			continue
+		}
+
+		var b []byte
+
+		if base != "" {
+			res, err := http.Get(base + "api/v1/message/" + m.ID + "/raw")
+
+			if err != nil {
+				logger.Log().Errorf("error fetching message %s: %s", m.ID, err.Error())
+				continue
+			}
+
+			b, err = io.ReadAll(res.Body)
+
+			if err != nil {
+				logger.Log().Errorf("error fetching message %s: %s", m.ID, err.Error())
+				continue
+			}
+		} else {
+			var err error
+			b, err = storage.GetMessageRaw(m.ID)
+			if err != nil {
+				logger.Log().Errorf("error fetching message %s: %s", m.ID, err.Error())
+				continue
+			}
+		}
+
+		if err := os.WriteFile(out, b, 0644); /* #nosec */ err != nil {
+			logger.Log().Errorf("error writing message %s: %s", m.ID, err.Error())
+			continue
+		}
+
+		_ = os.Chtimes(out, m.Created, m.Created)
+
+		logger.Log().Debugf("Saved message %s to %s", m.ID, out)
+	}
+
+	return nil
+}

internal/htmlcheck/caniemail-data.json

@@ -1,6 +1,6 @@
 {
 	"api_version":"1.0.4",
-	"last_update_date":"2024-10-09 08:12:03 +0000",
+	"last_update_date":"2025-08-01 15:36:41 +0000",
 	"nicenames":{"family":{"gmail":"Gmail","outlook":"Outlook","yahoo":"Yahoo! Mail","apple-mail":"Apple Mail","aol":"AOL","thunderbird":"Mozilla Thunderbird","microsoft":"Microsoft","samsung-email":"Samsung Email","sfr":"SFR","orange":"Orange","protonmail":"ProtonMail","hey":"HEY","mail-ru":"Mail.ru","fastmail":"Fastmail","laposte":"LaPoste.net","t-online-de":"T-online.de","free-fr":"Free.fr","gmx":"GMX","web-de":"WEB.DE","ionos-1and1":"1&1","rainloop":"RainLoop","wp-pl":"WP.pl"},"platform":{"desktop-app":"Desktop","desktop-webmail":"Desktop Webmail","mobile-webmail":"Mobile Webmail","webmail":"Webmail","ios":"iOS","android":"Android","windows":"Windows","macos":"macOS","windows-mail":"Windows Mail","outlook-com":"Outlook.com"},"support":{"supported":"Supported","mitigated":"Partially supported","unsupported":"Not supported","unknown":"Support unknown","mixed":"Mixed support"},"category":{"html":"HTML","css":"CSS","image":"Image formats","others":"Others"}},
 	"data":[
 		{
@@ -110,7 +110,7 @@
 			"last_test_date":"2023-12-19",
 			"test_url":"https://www.caniemail.com/tests/css-font-face.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/veY9MhuhgFeF1ly5crrhTXawfLJSwxgpYi27OElI7iSoc/list",
-			"stats":{"apple-mail":{"macos":{"12.2":"y"},"ios":{"10.3":"y","12.3.1":"y"}},"gmail":{"desktop-webmail":{"2019-07":"n #6"},"ios":{"2019-07":"n"},"android":{"2019-07":"n"},"mobile-webmail":{"2020-02":"n"}},"orange":{"desktop-webmail":{"2019-05":"a #2","2021-03":"n #7","2024-03":"n"},"ios":{"2019-07":"y","2024-03":"n"},"android":{"2019-07":"a #1","2024-04":"n"}},"outlook":{"windows":{"2003":"a #3","2007":"a #4 #5","2010":"a #4 #5","2013":"a #4 #5","2016":"a #4 #5","2019":"a #4"},"windows-mail":{"2020-01":"n"},"macos":{"2011":"y","2016":"y","16.80":"n"},"outlook-com":{"2019-07":"n","2023-12":"n"},"ios":{"2.51.1":"y","3.29.0":"n"},"android":{"2019-07":"n"}},"samsung-email":{"android":{"6.0":"y #8","2021-11":"y #8"}},"sfr":{"desktop-webmail":{"2019-07":"a #2"},"ios":{"2019-07":"n"},"android":{"2019-07":"n"}},"thunderbird":{"macos":{"60.7":"y","78.5":"y"}},"aol":{"desktop-webmail":{"2020-01":"n"},"ios":{"2020-01":"n"},"android":{"2020-01":"n"}},"yahoo":{"desktop-webmail":{"2019-07":"n"},"ios":{"2019-07":"n"},"android":{"2019-07":"n"}},"protonmail":{"desktop-webmail":{"2020-03":"n"},"ios":{"2020-03":"n"},"android":{"2020-03":"y"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-10":"n"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"laposte":{"desktop-webmail":{"2021-08":"a #2"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"n"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"n"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"n"}}},
+			"stats":{"apple-mail":{"macos":{"12.2":"y"},"ios":{"10.3":"y","12.3.1":"y"}},"gmail":{"desktop-webmail":{"2019-07":"n #6"},"ios":{"2019-07":"n"},"android":{"2019-07":"n"},"mobile-webmail":{"2020-02":"n"}},"orange":{"desktop-webmail":{"2019-05":"a #2","2021-03":"n #7","2024-03":"n"},"ios":{"2019-07":"y","2024-03":"n"},"android":{"2019-07":"a #1","2024-04":"n"}},"outlook":{"windows":{"2003":"a #3","2007":"a #4 #5","2010":"a #4 #5","2013":"a #4 #5","2016":"a #4 #5","2019":"a #4"},"windows-mail":{"2020-01":"n"},"macos":{"2011":"y","2016":"y","16.80":"n"},"outlook-com":{"2019-07":"n","2023-12":"n"},"ios":{"2.51.1":"y","3.29.0":"n"},"android":{"2019-07":"n"}},"samsung-email":{"android":{"6.0":"y #8","2021-11":"y #8"}},"sfr":{"desktop-webmail":{"2019-07":"a #2","2025-07":"n"},"ios":{"2019-07":"n"},"android":{"2019-07":"n"}},"thunderbird":{"macos":{"60.7":"y","78.5":"y"}},"aol":{"desktop-webmail":{"2020-01":"n"},"ios":{"2020-01":"n"},"android":{"2020-01":"n"}},"yahoo":{"desktop-webmail":{"2019-07":"n"},"ios":{"2019-07":"n"},"android":{"2019-07":"n"}},"protonmail":{"desktop-webmail":{"2020-03":"n"},"ios":{"2020-03":"n"},"android":{"2020-03":"y"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-10":"n"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"laposte":{"desktop-webmail":{"2021-08":"a #2","2025-07":"n"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"n"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"n"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"n"}}},
 			"notes":null,
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 		},
@@ -126,7 +126,7 @@
 			"last_test_date":"2019-02-28",
 			"test_url":"https://www.caniemail.com/tests/css-placement.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/6vV9sx4RoRsdnkZBDjLWwSC18VcUQzJY00tlj2NVSxKKv/list",
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 			"notes":null,
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 			"test_results_url":"https://app.emailonacid.com/app/acidtest/u4oWccYOFNNyTagHs2NSUZqJYQ3MssrqDMocBnRa35hf7/list",
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 			"notes":null,
 			"notes_by_num":{"1":"Not supported. The `@keyframes` declaration is kept but values are incorrectly prefixed.","2":"Partial. Only supports from and to keyframes. Does not support % keyframes"}
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@@ -158,7 +158,7 @@
 			"last_test_date":"2019-08-20",
 			"test_url":"https://www.caniemail.com/tests/css-media.html",
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 			"notes":null,
 			"notes_by_num":{"1":"Buggy. The first rule inside a media query is not prefixed."}
 		},
@@ -174,7 +174,7 @@
 			"last_test_date":"2022-08-29",
 			"test_url":"https://www.caniemail.com/tests/css-media-hover.html",
 			"test_results_url":"https://testi.at/proj/onECpNVH8Dhv7BSLPXUbQ4s0O",
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 			"notes":null,
 			"notes_by_num":null
 		},
@@ -190,9 +190,9 @@
 			"last_test_date":"2019-08-20",
 			"test_url":"https://www.caniemail.com/tests/css-media.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/hMLCNCSKZYHkLgLOpIWltlnYjtagbNsrwzMxalc2VbghN/list",
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 			"notes":null,
-			"notes_by_num":{"1":"Buggy. The first rule inside a media query is not prefixed."}
+			"notes_by_num":{"1":"Buggy. The first rule inside a media query is not prefixed.","2":"Partial. `orientation:portrait` is not supported."}
 		},
 	
 		{
@@ -206,7 +206,7 @@
 			"last_test_date":"2023-03-08",
 			"test_url":"https://www.caniemail.com/tests/css-media-prefers-color-scheme.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/CBhafIa5yXDRKQKbV442rVFISXim84wMgXaoCqVFD8VTe/list",
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 			"notes":null,
 			"notes_by_num":{"1":"Not supported. `@media (prefers-color-scheme)` is transformed into `@media ( _filtered_a )`.","2":"Not supported. `@media (prefers-color-scheme:dark)` is transformed into `@media none`.","3":"Additional custom `data` attributes (`data-ogsc`, `data-ogac`, `data-ogsb`, `data-ogab`) are added when viewing an email in dark mode. See [this article](https://www.hteumeuleu.com/2021/emails-react-outlook-com-dark-mode/) for examples.","4":"`@media (prefers-color-scheme:dark)` is transformed into `@media all` at run time if it applies.","5":"Not supported. `@media (prefers-color-scheme:dark)` is transformed into `@media (false)`","6":"Not supported. `@media (prefers-color-scheme:dark)` is transformed into `@media ()`"}
 		},
@@ -222,7 +222,7 @@
 			"last_test_date":"2021-02-20",
 			"test_url":"https://www.caniemail.com/tests/css-media-prefers-reduced-motion.html",
 			"test_results_url":"https://testi.at/proj/e3GT3l1CxqBUoE3u9keC4WLf5",
-			"stats":{"apple-mail":{"macos":{"11":"y","12":"y","13":"y"},"ios":{"11":"y","12":"y","13":"y","14":"y"}},"gmail":{"desktop-webmail":{"2020-12":"n"},"ios":{"2020-12":"n"},"android":{"2020-12":"n"},"mobile-webmail":{"2020-12":"n"}},"orange":{"desktop-webmail":{"2021-02":"y","2021-03":"y"},"ios":{"2021-02":"y"},"android":{"2021-02":"y"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"16005.13426.20316.0":"n"},"macos":{"2020-12":"y","16.80":"y"},"outlook-com":{"2020-12":"y"},"ios":{"2020-12":"y"},"android":{"4.2048.4":"y"}},"yahoo":{"desktop-webmail":{"2020-12":"n"},"ios":{"2021-02":"n"},"android":{"6.16.2.1519779":"n"}},"aol":{"desktop-webmail":{"2020-12":"n"},"ios":{"2021-02":"n"},"android":{"2021-02":"n"}},"samsung-email":{"android":{"6.1.31.2":"y"}},"sfr":{"desktop-webmail":{"2021-02":"y"},"ios":{"2021-02":"n"},"android":{"2021-02":"n"}},"thunderbird":{"macos":{"78.7":"n"}},"protonmail":{"desktop-webmail":{"2021-02":"n"},"ios":{"2021-02":"n"},"android":{"2021-02":"n"}},"hey":{"desktop-webmail":{"2021-02":"y"}},"mail-ru":{"desktop-webmail":{"2021-02":"n"}},"fastmail":{"desktop-webmail":{"2021-07":"n #1"}},"laposte":{"desktop-webmail":{"2021-08":"y"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
+			"stats":{"apple-mail":{"macos":{"11":"y","12":"y","13":"y"},"ios":{"11":"y","12":"y","13":"y","14":"y"}},"gmail":{"desktop-webmail":{"2020-12":"n"},"ios":{"2020-12":"n"},"android":{"2020-12":"n"},"mobile-webmail":{"2020-12":"n"}},"orange":{"desktop-webmail":{"2021-02":"y","2021-03":"y"},"ios":{"2021-02":"y"},"android":{"2021-02":"y"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"16005.13426.20316.0":"n"},"macos":{"2020-12":"y","16.80":"y"},"outlook-com":{"2020-12":"y"},"ios":{"2020-12":"y"},"android":{"4.2048.4":"y"}},"yahoo":{"desktop-webmail":{"2020-12":"n"},"ios":{"2021-02":"n"},"android":{"6.16.2.1519779":"n"}},"aol":{"desktop-webmail":{"2020-12":"n"},"ios":{"2021-02":"n"},"android":{"2021-02":"n"}},"samsung-email":{"android":{"6.1.31.2":"y"}},"sfr":{"desktop-webmail":{"2021-02":"y"},"ios":{"2021-02":"n"},"android":{"2021-02":"n"}},"thunderbird":{"macos":{"78.7":"n"}},"protonmail":{"desktop-webmail":{"2021-02":"n"},"ios":{"2021-02":"n"},"android":{"2021-02":"n"}},"hey":{"desktop-webmail":{"2021-02":"y"}},"mail-ru":{"desktop-webmail":{"2021-02":"n"}},"fastmail":{"desktop-webmail":{"2021-07":"n #1"}},"laposte":{"desktop-webmail":{"2021-08":"y","2025-07":"n"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Not supported. `@media (prefers-reduced-motion:reduce)` is transformed into `@media none`."}
 		},
@@ -238,7 +238,7 @@
 			"last_test_date":"2023-12-13",
 			"test_url":"https://www.caniemail.com/tests/css-media.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/hMLCNCSKZYHkLgLOpIWltlnYjtagbNsrwzMxalc2VbghN/list",
-			"stats":{"apple-mail":{"macos":{"10.3":"y"},"ios":{"10.3":"y","12.2":"y"}},"gmail":{"desktop-webmail":{"2019-08":"a #1 #7","2020-01":"a #7"},"ios":{"2019-08":"a #1 #6 #7","2020-01":"a #6 #7"},"android":{"2019-08":"a #1 #6 #7","2022-07":"a #6 #7"},"mobile-webmail":{"2020-02":"n"}},"orange":{"desktop-webmail":{"2019-08":"y #5","2021-03":"y"},"ios":{"2019-08":"y"},"android":{"2019-08":"y"}},"outlook":{"windows":{"2003":"a #1","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2020-01":"n"},"macos":{"2011":"y","2016":"y","16.80":"a #1 #10"},"outlook-com":{"2019-08":"a #1","2023-12":"a #1 #10"},"ios":{"2019-08":"a #1"},"android":{"2019-08":"a #1"}},"samsung-email":{"android":{"5.0.10.2":"y","6.0":"y","6.1.90.16":"a #9"}},"sfr":{"desktop-webmail":{"2019-08":"y"},"ios":{"2019-08":"n"},"android":{"2019-08":"n"}},"thunderbird":{"macos":{"60.3":"y","78.5":"n","102.11":"n"}},"yahoo":{"desktop-webmail":{"2019-08":"a #1 #2","2020-01":"a #2"},"ios":{"2019-08":"a #1 #2","2020-01":"a #2"},"android":{"2019-08":"a #1 #2 #3","2020-01":"a #2 #3"}},"aol":{"desktop-webmail":{"2019-02":"a #1 #2","2020-01":"a #2"},"ios":{"2019-02":"a #1 #2","2020-01":"a #2"},"android":{"2019-02":"a #1 #2","2020-01":"a #2"}},"protonmail":{"desktop-webmail":{"2020-03":"n","2023-05":"a #8"},"ios":{"2020-03":"n","2023-05":"a #8"},"android":{"2020-03":"y"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-10":"a #1 #7"}},"fastmail":{"desktop-webmail":{"2021-07":"y"}},"laposte":{"desktop-webmail":{"2021-08":"y"}},"gmx":{"desktop-webmail":{"2022-06":"y #1"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"y #1"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
+			"stats":{"apple-mail":{"macos":{"10.3":"y"},"ios":{"10.3":"y","12.2":"y"}},"gmail":{"desktop-webmail":{"2019-08":"a #1 #7","2020-01":"a #7"},"ios":{"2019-08":"a #1 #6 #7","2020-01":"a #6 #7"},"android":{"2019-08":"a #1 #6 #7","2022-07":"a #6 #7"},"mobile-webmail":{"2020-02":"n"}},"orange":{"desktop-webmail":{"2019-08":"y #5","2021-03":"y"},"ios":{"2019-08":"y"},"android":{"2019-08":"y"}},"outlook":{"windows":{"2003":"a #1","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2020-01":"n"},"macos":{"2011":"y","2016":"y","16.80":"a #1 #10"},"outlook-com":{"2019-08":"a #1","2023-12":"a #1 #10"},"ios":{"2019-08":"a #1"},"android":{"2019-08":"a #1"}},"samsung-email":{"android":{"5.0.10.2":"y","6.0":"y","6.1.90.16":"a #9"}},"sfr":{"desktop-webmail":{"2019-08":"y","2025-07":"n"},"ios":{"2019-08":"n"},"android":{"2019-08":"n"}},"thunderbird":{"macos":{"60.3":"y","78.5":"n","102.11":"n"}},"yahoo":{"desktop-webmail":{"2019-08":"a #1 #2","2020-01":"a #2"},"ios":{"2019-08":"a #1 #2","2020-01":"a #2"},"android":{"2019-08":"a #1 #2 #3","2020-01":"a #2 #3"}},"aol":{"desktop-webmail":{"2019-02":"a #1 #2","2020-01":"a #2"},"ios":{"2019-02":"a #1 #2","2020-01":"a #2"},"android":{"2019-02":"a #1 #2","2020-01":"a #2"}},"protonmail":{"desktop-webmail":{"2020-03":"n","2023-05":"a #8"},"ios":{"2020-03":"n","2023-05":"a #8"},"android":{"2020-03":"y"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-10":"a #1 #7"}},"fastmail":{"desktop-webmail":{"2021-07":"y"}},"laposte":{"desktop-webmail":{"2021-08":"y","2025-07":"n"}},"gmx":{"desktop-webmail":{"2022-06":"y #1"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"y #1"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Partial. Does not support nested media queries.","2":"Partial. Only supports `screen`, `min-width`, `max-width`, `min-height` and `max-height` based media queries.","3":"Buggy. Requires a double `<head>` hack to work.","4":"Partial. Does not support simple `@media {}` declarations.","5":"Buggy. The first rule inside a media query is not prefixed.","6":"Partial. Not supported with non Google accounts.","7":"Partial. Does not support height based media queries.","8":"Partial. Does not support landscape media query.","9":"Partial. Not supported with Hotmail/Outlook accounts.","10":"Partial. Nested media queries are removed."}
 		},
@@ -254,7 +254,7 @@
 			"last_test_date":"2020-05-25",
 			"test_url":"https://www.caniemail.com/tests/css-at-supports.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/No78GouZXTsxEZCD6z4Hn2frAvg3tHBw1SRAP8SwPKsZ5/list",
-			"stats":{"apple-mail":{"macos":{"13":"y"},"ios":{"13":"y"}},"gmail":{"desktop-webmail":{"2020-05":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"n"},"mobile-webmail":{"2020-05":"n"}},"orange":{"desktop-webmail":{"2020-05":"y","2021-03":"y"},"ios":{"2020-05":"y"},"android":{"2020-05":"y"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2020-05":"n"},"macos":{"2011":"y","2016":"y","16.80":"n"},"outlook-com":{"2020-05":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"n"}},"samsung-email":{"android":{"6.0":"y"}},"sfr":{"desktop-webmail":{"2020-05":"y"},"ios":{"2020-05":"n"},"android":{"2020-05":"n"}},"thunderbird":{"macos":{"68.7":"y","78.5":"n"}},"aol":{"desktop-webmail":{"2020-05":"y #1"},"ios":{"2020-05":"y #1"},"android":{"2020-05":"y #1"}},"yahoo":{"desktop-webmail":{"2020-05":"y #1"},"ios":{"2020-05":"y #1"},"android":{"2020-05":"y #1"}},"protonmail":{"desktop-webmail":{"2020-05":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"y"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-10":"n"}},"fastmail":{"desktop-webmail":{"2021-07":"n #2"}},"laposte":{"desktop-webmail":{"2021-08":"y"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
+			"stats":{"apple-mail":{"macos":{"13":"y"},"ios":{"13":"y"}},"gmail":{"desktop-webmail":{"2020-05":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"n"},"mobile-webmail":{"2020-05":"n"}},"orange":{"desktop-webmail":{"2020-05":"y","2021-03":"y"},"ios":{"2020-05":"y"},"android":{"2020-05":"y"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2020-05":"n"},"macos":{"2011":"y","2016":"y","16.80":"n"},"outlook-com":{"2020-05":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"n"}},"samsung-email":{"android":{"6.0":"y"}},"sfr":{"desktop-webmail":{"2020-05":"y","2025-07":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"n"}},"thunderbird":{"macos":{"68.7":"y","78.5":"n"}},"aol":{"desktop-webmail":{"2020-05":"y #1"},"ios":{"2020-05":"y #1"},"android":{"2020-05":"y #1"}},"yahoo":{"desktop-webmail":{"2020-05":"y #1"},"ios":{"2020-05":"y #1"},"android":{"2020-05":"y #1"}},"protonmail":{"desktop-webmail":{"2020-05":"n"},"ios":{"2020-05":"n"},"android":{"2020-05":"y"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-10":"n"}},"fastmail":{"desktop-webmail":{"2021-07":"n #2"}},"laposte":{"desktop-webmail":{"2021-08":"y","2025-07":"n"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Properties not supported by the client are replaced by `_filtered_a` inside the parenthesis.","2":"Not supported. `@supports` is transformed into `@media not all`."}
 		},
@@ -521,7 +521,7 @@
 			"description":"Support for border radius logical properties",
 			"url":"https://www.caniemail.com/features/css-border-radius-logical/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"border-start-start-radius, border-start-end-radius, border-end-start-radius, border-end-end-radius",
 			"last_test_date":"2022-08-16",
 			"test_url":"https://www.caniemail.com/tests/css-border-logical-properties.html",
@@ -627,6 +627,22 @@
 			"notes_by_num":{"1":"The `caption-side` property in CSS is supported but the `<caption>` HTML element is not."}
 		},
 	
+		{
+			"slug":"css-clear",
+			"title":"clear",
+			"description":"Sets whether an element must be moved below (cleared) floating elements that precede it.",
+			"url":"https://www.caniemail.com/features/css-clear/",
+			"category":"css",
+			"tags":[],
+			"keywords":null,
+			"last_test_date":"2024-09-06",
+			"test_url":"https://www.caniemail.com/tests/css-box-model.html",
+			"test_results_url":"https://testi.at/proj/gyjkc98dtyzxfd3bhz",
+			"stats":{"apple-mail":{"macos":{"11":"a #1","12":"y"},"ios":{"14":"a #1","15":"y"}},"gmail":{"desktop-webmail":{"2024-09":"y"},"ios":{"13":"a #2","16":"y"},"android":{"2024-09":"a #1"},"mobile-webmail":{"2024-09":"u"}},"orange":{"desktop-webmail":{"2024-09":"u"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2024-09":"n"},"macos":{"2024-09":"u"},"outlook-com":{"2024-09":"y"},"ios":{"2024-09":"y"},"android":{"2024-09":"a #1"}},"yahoo":{"desktop-webmail":{"2024-09":"a #1"},"ios":{"2024-09":"a #1"},"android":{"2024-09":"a #1"}},"aol":{"desktop-webmail":{"2024-09":"a #1"},"ios":{"2024-09":"a #1"},"android":{"2024-09":"a #1"}},"samsung-email":{"android":{"2024-09":"y"}},"sfr":{"desktop-webmail":{"2024-09":"u"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"thunderbird":{"macos":{"2024-09":"u"}},"protonmail":{"desktop-webmail":{"2024-09":"y"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"hey":{"desktop-webmail":{"2024-09":"u"}},"mail-ru":{"desktop-webmail":{"2024-09":"y"}},"fastmail":{"desktop-webmail":{"2024-09":"u"}},"laposte":{"desktop-webmail":{"2024-09":"u"}},"gmx":{"desktop-webmail":{"2024-09":"a #1"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"web-de":{"desktop-webmail":{"2024-09":"a #1"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-09":"u"},"android":{"2024-09":"u"}}},
+			"notes":null,
+			"notes_by_num":{"1":"Partial. Logical property values `inline-start` and `inline-end` are not supported."}
+		},
+	
 		{
 			"slug":"css-clip-path",
 			"title":"clip-path",
@@ -894,7 +910,7 @@
 			"last_test_date":"2022-08-01",
 			"test_url":"https://www.caniemail.com/tests/css-font-kerning.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/RlRYNGDjVNBhofxCNxloUcRbUVWGDhJ2kZ4fy6HXpEatH/list",
-			"stats":{"apple-mail":{"macos":{"11":"y","12":"y","13":"y","14":"y","15":"y"},"ios":{"11":"y","12":"y","13":"y","14":"y","15":"y"}},"gmail":{"desktop-webmail":{"2022-08":"y"},"ios":{"2022-08":"y"},"android":{"2022-08":"y"},"mobile-webmail":{"2022-08":"y"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"macos":{"2022-08":"y","16.80":"y"},"outlook-com":{"2022-08":"y"},"ios":{"2022-08":"y"},"android":{"4.2101.1":"y"}},"yahoo":{"desktop-webmail":{"2022-08":"n","2024-03":"n"},"ios":{"2024-03":"n"},"android":{"2024-03":"n"}},"aol":{"desktop-webmail":{"2022-08":"n"}},"samsung-email":{"android":{"6.1.31.2":"y"}},"mail-ru":{"desktop-webmail":{"2022-08":"n"}},"free-fr":{"desktop-webmail":{"2022-08":"y"}},"gmx":{"desktop-webmail":{"2022-08":"n"}},"t-online-de":{"desktop-webmail":{"2022-08":"n"}},"sfr":{"desktop-webmail":{"2024-03":"y"},"ios":{"2024-03":"u"},"android":{"2024-03":"u"}}},
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 			"notes_by_num":{"1":"Partial. Not supported with non Google accounts."}
@@ -990,9 +1006,9 @@
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 			"notes":null,
-			"notes_by_num":{"1":"Only supported if you’ve updated your OS with Safari 17.5 or later.","2":"Buggy. The function is supported but the color stays light even in dark mode."}
+			"notes_by_num":{"1":"Only supported if you’ve updated your OS with Safari 17.5 or later.","2":"Buggy. The function is supported but the color stays light even in dark mode.","3":"Partial. Not supported with Hotmail/Outlook accounts."}
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 			"notes_by_num":{"1":"Buggy. Replaces `height` by `min-height`.","2":"Partial. Not supported on `<body>`, `<span>`, `<div>` or `<p>` elements."}
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 			"description":"Shorthand that corresponds to the `top`, `right`, `bottom`, and/or `left` properties",
 			"url":"https://www.caniemail.com/features/css-inset/",
 			"category":"css",
-			"tags":[],
-			"keywords":null,
+			"tags":["i18n"],
+			"keywords":"inset-block, inset-inline, inset-inline-start, inset-inline-end, inset-block-start, inset-block-end",
 			"last_test_date":"2024-05-29",
 			"test_url":"https://www.caniemail.com/tests/css-inset.html",
 			"test_results_url":"https://testi.at/proj/rlpdia3k18jytjx8c2",
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 			"notes":null,
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 		},
@@ -1214,9 +1230,9 @@
 			"last_test_date":"2021-05-16",
 			"test_url":"https://www.caniemail.com/tests/css-positioning.html",
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+			"stats":{"apple-mail":{"macos":{"14":"y"},"ios":{"14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"},"mobile-webmail":{"2021-05":"n"}},"orange":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"y"},"android":{"2021-05":"y"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"y","2016":"y","16.80":"y"},"outlook-com":{"2021-05":"y","2023-12":"y"},"ios":{"2021-05":"y"},"android":{"2021-05":"y"}},"samsung-email":{"android":{"6.0":"y","6.2.01.1":"a #2"}},"sfr":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"y"},"android":{"2021-05":"y"}},"thunderbird":{"macos":{"78.10":"y"}},"aol":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"yahoo":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"protonmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"y"},"android":{"2021-05":"y"}},"hey":{"desktop-webmail":{"2021-05":"y"}},"mail-ru":{"desktop-webmail":{"2021-05":"a #1"}},"fastmail":{"desktop-webmail":{"2021-07":"y"}},"laposte":{"desktop-webmail":{"2021-08":"y"}},"gmx":{"desktop-webmail":{"2022-06":"y"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"y"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
 			"notes":null,
-			"notes_by_num":{"1":"Partial. `left` and `top` are not supported."}
+			"notes_by_num":{"1":"Partial. `left` and `top` are not supported.","2":"Partial. Percentages values are not supported."}
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 		{
@@ -1262,9 +1278,9 @@
 			"last_test_date":"2021-12-29",
 			"test_url":"https://www.caniemail.com/tests/css-gradients.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/8FCYDYSPXot6jquGzeiqGsfoeCU4tvCeRpnVG0z6luNLr/list",
-			"stats":{"apple-mail":{"macos":{"15":"y"},"ios":{"15":"y"}},"gmail":{"desktop-webmail":{"2021-12":"y"},"ios":{"2021-12":"y"},"android":{"2021-12":"y"},"mobile-webmail":{"2021-12":"y"}},"orange":{"desktop-webmail":{"2021-12":"n"},"ios":{"2021-12":"n"},"android":{"2021-12":"n"}},"outlook":{"windows":{"2007":"n #1","2010":"n #1","2013":"n #1","2016":"n #1","2019":"n #1"},"windows-mail":{"2021-12":"n"},"macos":{"16.57":"y","16.80":"n"},"outlook-com":{"2021-12":"n","2023-12":"n"},"ios":{"2.51.1":"y","4.2148.2":"n"},"android":{"4.2147.4":"n"}},"samsung-email":{"android":{"6.0":"y","6.1.90.16":"a #2"}},"sfr":{"desktop-webmail":{"2021-12":"y"},"ios":{"2021-12":"y"},"android":{"2021-12":"y"}},"thunderbird":{"macos":{"91.4.1":"y"}},"aol":{"desktop-webmail":{"2021-12":"n"},"ios":{"2021-12":"n"},"android":{"2021-12":"n"}},"yahoo":{"desktop-webmail":{"2021-12":"n"},"ios":{"2021-12":"n"},"android":{"2021-12":"n"}},"protonmail":{"desktop-webmail":{"2021-12":"y"},"ios":{"2021-12":"y"},"android":{"2021-12":"y"}},"hey":{"desktop-webmail":{"2021-12":"y"}},"mail-ru":{"desktop-webmail":{"2021-12":"y"}},"fastmail":{"desktop-webmail":{"2021-12":"y"}},"laposte":{"desktop-webmail":{"2021-12":"y"}},"t-online-de":{"desktop-webmail":{"2021-12":"y"}},"free-fr":{"desktop-webmail":{"2021-12":"y"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
+			"stats":{"apple-mail":{"macos":{"15":"y"},"ios":{"15":"y"}},"gmail":{"desktop-webmail":{"2021-12":"y"},"ios":{"2021-12":"y"},"android":{"2021-12":"y","2025-04":"a #3"},"mobile-webmail":{"2021-12":"y"}},"orange":{"desktop-webmail":{"2021-12":"n"},"ios":{"2021-12":"n"},"android":{"2021-12":"n"}},"outlook":{"windows":{"2007":"n #1","2010":"n #1","2013":"n #1","2016":"n #1","2019":"n #1"},"windows-mail":{"2021-12":"n"},"macos":{"16.57":"y","16.80":"n"},"outlook-com":{"2021-12":"n","2023-12":"n"},"ios":{"2.51.1":"y","4.2148.2":"n"},"android":{"4.2147.4":"n"}},"samsung-email":{"android":{"6.0":"y","6.1.90.16":"a #2"}},"sfr":{"desktop-webmail":{"2021-12":"y"},"ios":{"2021-12":"y"},"android":{"2021-12":"y"}},"thunderbird":{"macos":{"91.4.1":"y"}},"aol":{"desktop-webmail":{"2021-12":"n"},"ios":{"2021-12":"n"},"android":{"2021-12":"n"}},"yahoo":{"desktop-webmail":{"2021-12":"n"},"ios":{"2021-12":"n"},"android":{"2021-12":"n"}},"protonmail":{"desktop-webmail":{"2021-12":"y"},"ios":{"2021-12":"y"},"android":{"2021-12":"y"}},"hey":{"desktop-webmail":{"2021-12":"y"}},"mail-ru":{"desktop-webmail":{"2021-12":"y"}},"fastmail":{"desktop-webmail":{"2021-12":"y"}},"laposte":{"desktop-webmail":{"2021-12":"y"}},"t-online-de":{"desktop-webmail":{"2021-12":"y"}},"free-fr":{"desktop-webmail":{"2021-12":"y"}},"gmx":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"web-de":{"desktop-webmail":{"2022-06":"n"},"ios":{"2022-06":"y"},"android":{"2022-06":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-06":"y"},"android":{"2022-06":"y"}}},
 			"notes":null,
-			"notes_by_num":{"1":"Gradients can be created in VML using `type=\"gradient\"` on a `<v:fill>`. See [VML documentation](https://docs.microsoft.com/en-us/windows/win32/vml/web-workshop---how-to-use-vml-on-web-pages-----fill--element#gradient-fill).","2":"Partial. Not supported with Hotmail/Outlook accounts."}
+			"notes_by_num":{"1":"Gradients can be created in VML using `type=\"gradient\"` on a `<v:fill>`. See [VML documentation](https://docs.microsoft.com/en-us/windows/win32/vml/web-workshop---how-to-use-vml-on-web-pages-----fill--element#gradient-fill).","2":"Partial. Not supported with Hotmail/Outlook accounts.","3":"Buggy. Does not work inline in the `background-image` property. (See [email-bugs#135](https://github.com/hteumeuleu/email-bugs/issues/135))"}
 		},
 	
 		{
@@ -1358,7 +1374,7 @@
 			"last_test_date":"2022-07-12",
 			"test_url":"https://www.caniemail.com/tests/css-margin-logical-properties.html",
 			"test_results_url":"https://testi.at/proj/qAmuL03Fg51cE6hkbNSVrXik",
-			"stats":{"apple-mail":{"macos":{"10.12.6":"n","10.13.6":"n","10.15.7":"n","12.4":"y"},"ios":{"11.4":"n","12":"n","13":"n","14":"n","15":"y"}},"gmail":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"},"mobile-webmail":{"2022-07":"n"}},"orange":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-07":"n"},"macos":{"2011":"n","2016":"n","16.80":"n"},"outlook-com":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"samsung-email":{"android":{"10":"n","11":"n"}},"sfr":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"thunderbird":{"macos":{"60.3":"u"}},"aol":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"yahoo":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"protonmail":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"hey":{"desktop-webmail":{"2022-07":"u"}},"mail-ru":{"desktop-webmail":{"2022-07":"y"}},"fastmail":{"desktop-webmail":{"2022-07":"u"}},"laposte":{"desktop-webmail":{"2022-07":"u"}},"gmx":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"y"}},"web-de":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-09":"y"},"android":{"2022-09":"y"}}},
+			"stats":{"apple-mail":{"macos":{"10.12.6":"n","10.13.6":"n","10.15.7":"n","12.4":"y"},"ios":{"11.4":"n","12":"n","13":"n","14":"n","15":"y"}},"gmail":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"},"mobile-webmail":{"2022-07":"n"}},"orange":{"desktop-webmail":{"2022-07":"y","2021-03":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-07":"n"},"macos":{"2011":"n","2016":"n","16.80":"n"},"outlook-com":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"samsung-email":{"android":{"10":"n","11":"n"}},"sfr":{"desktop-webmail":{"2022-07":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"thunderbird":{"macos":{"60.3":"y"}},"aol":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"yahoo":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"protonmail":{"desktop-webmail":{"2022-07":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"hey":{"desktop-webmail":{"2022-07":"y"}},"mail-ru":{"desktop-webmail":{"2022-07":"y"}},"fastmail":{"desktop-webmail":{"2022-07":"y"}},"laposte":{"desktop-webmail":{"2022-07":"y"}},"gmx":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"y"}},"web-de":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-09":"y"},"android":{"2022-09":"y"}}},
 			"notes":null,
 			"notes_by_num":null
 		},
@@ -1379,22 +1395,6 @@
 			"notes_by_num":null
 		},
 	
-		{
-			"slug":"css-margin-inline",
-			"title":"margin-inline & margin-block",
-			"description":"Support for the `margin-inline` and `margin-block` shorthand properties.",
-			"url":"https://www.caniemail.com/features/css-margin-inline/",
-			"category":"css",
-			"tags":[],
-			"keywords":"margin-inline, margin-block",
-			"last_test_date":"2022-07-01",
-			"test_url":"https://www.caniemail.com/tests/css-margin-logical-properties.html",
-			"test_results_url":"https://testi.at/proj/qAmuL03Fg51cE6hkbNSVrXik",
-			"stats":{"apple-mail":{"macos":{"10.12.6":"n","10.13.6":"n","10.15.7":"n","12.4":"y"},"ios":{"11.4":"n","12":"n","13":"n","14":"n","15":"y"}},"gmail":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"},"mobile-webmail":{"2022-07":"n"}},"orange":{"desktop-webmail":{"2022-07":"y","2021-03":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-07":"n"},"macos":{"2011":"n","2016":"n","16.80":"n"},"outlook-com":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"samsung-email":{"android":{"10":"n"}},"sfr":{"desktop-webmail":{"2022-07":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"thunderbird":{"macos":{"60.3":"y"}},"aol":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"yahoo":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"protonmail":{"desktop-webmail":{"2022-07":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"hey":{"desktop-webmail":{"2022-07":"y"}},"mail-ru":{"desktop-webmail":{"2022-07":"y"}},"fastmail":{"desktop-webmail":{"2022-07":"y"}},"laposte":{"desktop-webmail":{"2022-07":"y"}},"gmx":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"y"}},"web-de":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-09":"y"},"android":{"2022-09":"y"}}},
-			"notes":null,
-			"notes_by_num":null
-		},
-	
 		{
 			"slug":"css-margin",
 			"title":"margin",
@@ -1411,13 +1411,29 @@
 			"notes_by_num":{"1":"Partial. Negative values are not supported.","2":"Partial. Not supported on `<span>` and `<body>` elements.","3":"Buggy. `background-color` is included inside the `margin`.","4":"Partial. `auto` value is not supported."}
 		},
 	
+		{
+			"slug":"css-mask-image",
+			"title":"mask-image",
+			"description":"Sets the image that is used as mask layer for an element",
+			"url":"https://www.caniemail.com/features/css-mask-image/",
+			"category":"css",
+			"tags":[],
+			"keywords":null,
+			"last_test_date":"2024-11-27",
+			"test_url":"https://www.caniemail.com/tests/css-mask-image.html",
+			"test_results_url":"https://testi.at/proj/x9aotv8ysvn805531p",
+			"stats":{"apple-mail":{"macos":{"10":"n","11":"n","12":"y","13":"y","14":"y","15":"y"},"ios":{"11":"n","12":"n","13":"n","14":"n","15":"y","16":"y","17":"y"}},"gmail":{"desktop-webmail":{"2024-11":"n"},"ios":{"2024-11":"n"},"android":{"2024-11":"n"},"mobile-webmail":{"2024-11":"n"}},"orange":{"desktop-webmail":{"2024-11":"u"},"ios":{"2024-11":"u"},"android":{"2024-11":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n","2024":"n"},"windows-mail":{"2024-11":"n"},"macos":{"2024-11":"y"},"outlook-com":{"2024-11":"n"},"ios":{"2024-11":"n"},"android":{"2024-11":"n"}},"yahoo":{"desktop-webmail":{"2024-11":"n"},"ios":{"2024-11":"n"},"android":{"2024-11":"n"}},"aol":{"desktop-webmail":{"2024-11":"n"},"ios":{"2024-11":"n"},"android":{"2024-11":"n"}},"samsung-email":{"android":{"2024-11":"y"}},"sfr":{"desktop-webmail":{"2024-03":"u"},"ios":{"2024-03":"u"},"android":{"2024-03":"u"}},"protonmail":{"desktop-webmail":{"2024-11":"u"},"ios":{"2024-11":"u"},"android":{"2024-11":"u"}},"hey":{"desktop-webmail":{"2024-11":"u"}},"mail-ru":{"desktop-webmail":{"2024-11":"y"}},"fastmail":{"desktop-webmail":{"2024-11":"u"}},"laposte":{"desktop-webmail":{"2024-11":"u"}},"gmx":{"desktop-webmail":{"2024-11":"n"},"ios":{"2024-11":"u"},"android":{"2024-11":"u"}},"web-de":{"desktop-webmail":{"2024-11":"n"},"ios":{"2024-11":"u"},"android":{"2024-11":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-11":"u"},"android":{"2024-11":"u"}}},
+			"notes":null,
+			"notes_by_num":null
+		},
+	
 		{
 			"slug":"css-max-block-size",
 			"title":"max-block-size",
 			"description":"",
 			"url":"https://www.caniemail.com/features/css-max-block-size/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"max, block, size",
 			"last_test_date":"2022-09-01",
 			"test_url":"https://www.caniemail.com/tests/css-max-block-size.html",
@@ -1449,7 +1465,7 @@
 			"description":"Defines the horizontal or vertical maximum size of an element's block, depending on its writing mode",
 			"url":"https://www.caniemail.com/features/css-max-inline-size/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"max, inline, size",
 			"last_test_date":"2024-05-31",
 			"test_url":"https://www.caniemail.com/tests/css-max-inline-size.html",
@@ -1481,7 +1497,7 @@
 			"description":"Defines the minimum horizontal or vertical size of an element's block, depending on its writing mode",
 			"url":"https://www.caniemail.com/features/css-min-block-size/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"min, block, size",
 			"last_test_date":"2024-05-31",
 			"test_url":"https://www.caniemail.com/tests/css-min-block-size.html",
@@ -1513,7 +1529,7 @@
 			"description":"",
 			"url":"https://www.caniemail.com/features/css-min-inline-size/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"min, inline, size",
 			"last_test_date":"2022-08-30",
 			"test_url":"https://www.caniemail.com/tests/css-min-inline-size.html",
@@ -1582,7 +1598,7 @@
 			"last_test_date":"2023-08-31",
 			"test_url":"https://www.caniemail.com/tests/css-nesting.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/8z9ecWkyaSHebmYl0r6dlWFfcia0VNfeKu6s01l5Fw3M0/list",
-			"stats":{"apple-mail":{"macos":{"16.0":"a #1"},"ios":{"16.6":"a #1","17.2":"y"}},"gmail":{"desktop-webmail":{"2023-08":"n"},"ios":{"2023-08":"n"},"android":{"2023-08":"n"},"mobile-webmail":{"2023-08":"n"}},"orange":{"desktop-webmail":{"2023-08":"a #2"},"ios":{"2023-08":"a #2"},"android":{"2023-08":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2023-08":"n"},"macos":{"16.78":"a #1","16.80":"n"},"outlook-com":{"2023-08":"n","2024-01":"n"},"ios":{"2023-08":"n"},"android":{"2024-03":"n"}},"samsung-email":{"android":{"6.0":"u","6.1.90.16":"a #4"}},"sfr":{"desktop-webmail":{"2023-08":"a #1 #2"},"ios":{"2023-08":"n"},"android":{"2023-08":"u"}},"thunderbird":{"macos":{"102.15":"n"}},"aol":{"desktop-webmail":{"2024-01":"n #3"},"ios":{"2023-08":"u"},"android":{"2023-08":"u"}},"yahoo":{"desktop-webmail":{"2023-08":"n #3"},"ios":{"2023-08":"n #3"},"android":{"2024-03":"n #3"}},"protonmail":{"desktop-webmail":{"2023-08":"u"},"ios":{"2023-08":"u"},"android":{"2023-08":"u"}},"hey":{"desktop-webmail":{"2023-08":"u"}},"mail-ru":{"desktop-webmail":{"2024-01":"n"}},"fastmail":{"desktop-webmail":{"2023-08":"u"}},"laposte":{"desktop-webmail":{"2023-08":"u"}},"free-fr":{"desktop-webmail":{"2023-08":"u"}},"t-online-de":{"desktop-webmail":{"2023-08":"u"}},"gmx":{"desktop-webmail":{"2021-12":"u"},"ios":{"2021-12":"u"},"android":{"2021-12":"u"}},"web-de":{"desktop-webmail":{"2021-12":"u"},"ios":{"2021-12":"u"},"android":{"2021-12":"u"}},"ionos-1and1":{"desktop-webmail":{"2021-12":"u"},"android":{"2021-12":"u"}}},
+			"stats":{"apple-mail":{"macos":{"16.0":"a #1"},"ios":{"16.6":"a #1","17.2":"y"}},"gmail":{"desktop-webmail":{"2023-08":"n"},"ios":{"2023-08":"n"},"android":{"2023-08":"n"},"mobile-webmail":{"2023-08":"n"}},"orange":{"desktop-webmail":{"2023-08":"a #2"},"ios":{"2023-08":"a #2"},"android":{"2023-08":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2023-08":"n"},"macos":{"16.78":"a #1","16.80":"n"},"outlook-com":{"2023-08":"n","2024-01":"n"},"ios":{"2023-08":"n"},"android":{"2024-03":"n"}},"samsung-email":{"android":{"6.0":"u","6.1.90.16":"a #4"}},"sfr":{"desktop-webmail":{"2023-08":"a #1 #2"},"ios":{"2023-08":"n"},"android":{"2023-08":"u"}},"thunderbird":{"macos":{"102.15":"n","137.0b3":"y"}},"aol":{"desktop-webmail":{"2024-01":"n #3"},"ios":{"2023-08":"u"},"android":{"2023-08":"u"}},"yahoo":{"desktop-webmail":{"2023-08":"n #3"},"ios":{"2023-08":"n #3"},"android":{"2024-03":"n #3"}},"protonmail":{"desktop-webmail":{"2023-08":"u"},"ios":{"2023-08":"u"},"android":{"2023-08":"u"}},"hey":{"desktop-webmail":{"2023-08":"u"}},"mail-ru":{"desktop-webmail":{"2024-01":"n"}},"fastmail":{"desktop-webmail":{"2023-08":"u"}},"laposte":{"desktop-webmail":{"2023-08":"u"}},"free-fr":{"desktop-webmail":{"2023-08":"u"}},"t-online-de":{"desktop-webmail":{"2023-08":"u"}},"gmx":{"desktop-webmail":{"2021-12":"u"},"ios":{"2021-12":"u"},"android":{"2021-12":"u"}},"web-de":{"desktop-webmail":{"2021-12":"u"},"ios":{"2021-12":"u"},"android":{"2021-12":"u"}},"ionos-1and1":{"desktop-webmail":{"2021-12":"u"},"android":{"2021-12":"u"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Partial. `E { F {}}` doesn’t work, but `E { & F {}}` does. Full support was added in macOS 14.2.","2":"Buggy. The syntax is supported, but nested selectors are prefixed by the webmail, which might invalidate the selector.","3":"Not supported. The nested selectors are removed, making the nested properties apply to the parent selector.","4":"Partial. Not supported with Hotmail/Outlook accounts."}
 		},
@@ -1694,25 +1710,25 @@
 			"last_test_date":"2022-08-03",
 			"test_url":"https://www.caniemail.com/tests/css-overflow-wrap.html",
 			"test_results_url":"https://testi.at/proj/zxOsWrYsJqztvWC7JYF8xrUgn",
-			"stats":{"apple-mail":{"macos":{"16":"n","17":"n","18":"n","19":"n","20":"n","21":"n"},"ios":{"11":"n","12":"n","13":"n","14":"n","15":"n"}},"gmail":{"desktop-webmail":{"2022-08":"n"},"ios":{"2022-08":"n"},"android":{"2022-08":"n"},"mobile-webmail":{"2022-08":"u"}},"orange":{"desktop-webmail":{"2022-08":"u"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-08":"n"},"macos":{"2022-08":"y","16.80":"n"},"outlook-com":{"2022-08":"n","2024-01":"n"},"ios":{"2022-08":"n"},"android":{"2022-08":"n"}},"yahoo":{"desktop-webmail":{"2022-08":"n"},"ios":{"2022-08":"n"},"android":{"2022-08":"n"}},"aol":{"desktop-webmail":{"2022-08":"n"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"samsung-email":{"android":{"2022-08":"y"}},"sfr":{"desktop-webmail":{"2022-08":"u"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"protonmail":{"desktop-webmail":{"2022-08":"u"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"hey":{"desktop-webmail":{"2022-08":"u"}},"mail-ru":{"desktop-webmail":{"2022-08":"y"}},"fastmail":{"desktop-webmail":{"2022-08":"u"}}},
+			"stats":{"apple-mail":{"macos":{"16.0":"a #1"},"ios":{"18.3.2":"a #1"}},"gmail":{"desktop-webmail":{"2022-08":"n"},"ios":{"2022-08":"n"},"android":{"2022-08":"n"},"mobile-webmail":{"2022-08":"u"}},"orange":{"desktop-webmail":{"2022-08":"u"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-08":"n"},"macos":{"2022-08":"y","16.80":"n"},"outlook-com":{"2022-08":"n","2024-01":"n"},"ios":{"2022-08":"n"},"android":{"2022-08":"n"}},"yahoo":{"desktop-webmail":{"2022-08":"n"},"ios":{"2022-08":"n"},"android":{"2022-08":"n"}},"aol":{"desktop-webmail":{"2022-08":"n"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"samsung-email":{"android":{"2022-08":"y"}},"sfr":{"desktop-webmail":{"2022-08":"u"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"protonmail":{"desktop-webmail":{"2022-08":"u"},"ios":{"2022-08":"u"},"android":{"2022-08":"u"}},"hey":{"desktop-webmail":{"2022-08":"u"}},"mail-ru":{"desktop-webmail":{"2022-08":"y"}},"fastmail":{"desktop-webmail":{"2022-08":"u"}}},
 			"notes":null,
-			"notes_by_num":null
+			"notes_by_num":{"1":"Buggy. Requires `word-break:normal` to reset Apple Mail default style (See [issue#394](https://github.com/hteumeuleu/caniemail/issues/394).)"}
 		},
 	
 		{
 			"slug":"css-overflow",
 			"title":"overflow",
-			"description":"",
+			"description":"Sets the desired behavior when content does not fit in the element's padding box",
 			"url":"https://www.caniemail.com/features/css-overflow/",
 			"category":"css",
 			"tags":[],
-			"keywords":null,
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 			"notes":null,
 			"notes_by_num":{"1":"Partial. Only supported on type selectors."}
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@@ -1886,7 +1902,7 @@
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 			"notes":"As of december 2021, `:has()` is only supported in [Safari Technology Preview 137](https://webkit.org/blog/12156/release-notes-for-safari-technology-preview-137/). As of march 2022, it is supported in Safari 15.4.",
 			"notes_by_num":{"1":"Not supported. `:has(…)` is replaced by `:has`.","2":"Not supported. But the pseudo-class seems interpreted and computed server side."}
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 			"notes":null,
 			"notes_by_num":{"1":"Partial. Not supported with non Google accounts.","2":"Partial. Only supported on type selectors."}
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@@ -1918,7 +1934,7 @@
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@@ -1934,7 +1950,7 @@
 			"last_test_date":"2019-10-19",
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 			"notes":null,
 			"notes_by_num":{"1":"Partial. Only supported on type selectors."}
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@@ -1950,7 +1966,7 @@
 			"last_test_date":"2019-10-19",
 			"test_url":"https://www.caniemail.com/tests/css-selectors-pseudo-classes.html",
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 			"notes":null,
 			"notes_by_num":{"1":"Partial. Only supported on type selectors."}
 		},
@@ -1966,7 +1982,7 @@
 			"last_test_date":"2019-10-23",
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 			"notes_by_num":{"1":"Not supported with non Outlook accounts.","2":"Partial. Only supported on type selectors."}
 		},
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 			"last_test_date":"2022-12-28",
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 			"notes_by_num":{"1":"Not supported. But `@list` declarations can achieve the same thing."}
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@@ -2206,7 +2222,7 @@
 			"last_test_date":"2020-05-21",
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@@ -2222,9 +2238,9 @@
 			"last_test_date":"2021-12-29",
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-			"notes_by_num":{"1":"Gradients can be created in VML using `type=\"gradientRadial\"` on a `<v:fill>`. See [VML documentation](https://docs.microsoft.com/en-us/windows/win32/vml/web-workshop---how-to-use-vml-on-web-pages-----fill--element#gradient-fill)."}
+			"notes_by_num":{"1":"Gradients can be created in VML using `type=\"gradientRadial\"` on a `<v:fill>`. See [VML documentation](https://docs.microsoft.com/en-us/windows/win32/vml/web-workshop---how-to-use-vml-on-web-pages-----fill--element#gradient-fill).","2":"Buggy. Does not work inline in the `background-image` property. (See [email-bugs#135](https://github.com/hteumeuleu/email-bugs/issues/135))"}
 		},
 	
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@@ -2606,7 +2622,7 @@
 			"last_test_date":"2023-12-06",
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@@ -2668,8 +2684,8 @@
 			"tags":[],
 			"keywords":"underline",
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+			"test_url":"https://www.caniemail.com/tests/css-text-decoration.html",
+			"test_results_url":"https://app.emailonacid.com/app/acidtest/3r2uYHjW7RohepVjh05qVkSQ9t7gJVJd6O5ABI8grFvqQ/list",
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 			"description":"Sets the orientation of the text characters in vertical mode.",
 			"url":"https://www.caniemail.com/features/css-text-orientation/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"vertical orientation",
 			"last_test_date":"2023-12-08",
 			"test_url":"https://www.caniemail.com/tests/css-text-orientation.html",
@@ -3353,7 +3369,7 @@
 			"description":"Represents an abbreviation or acronym.",
 			"url":"https://www.caniemail.com/features/html-abbr/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":null,
 			"last_test_date":"2023-09-13",
 			"test_url":"https://www.caniemail.com/tests/html-abbr.html",
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 			"notes_by_num":{"1":"Partial. Not supported with non Google accounts.","2":"Partial. Only supported on the `<body>` element."}
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 			"description":"A short fragment of computer code.",
 			"url":"https://www.caniemail.com/features/html-code/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":null,
 			"last_test_date":"2023-04-25",
 			"test_url":"https://www.caniemail.com/tests/html-code.html",
@@ -3753,7 +3769,7 @@
 			"description":"Indicates the directionality of the element's text.",
 			"url":"https://www.caniemail.com/features/html-dir/",
 			"category":"html",
-			"tags":["i18n"],
+			"tags":["i18n","accessibility"],
 			"keywords":"direction, ltr, rtl",
 			"last_test_date":"2021-11-01",
 			"test_url":"https://www.caniemail.com/tests/css-direction.html",
@@ -3865,12 +3881,12 @@
 			"description":"HTML horizontal rule",
 			"url":"https://www.caniemail.com/features/html-hr/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":null,
 			"last_test_date":"2023-09-08",
 			"test_url":"https://www.caniemail.com/tests/html-hr.html",
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 			"description":"Displays an image into the document",
 			"url":"https://www.caniemail.com/features/html-img/",
 			"category":"html",
-			"tags":[],
+			"tags":["performance","accessibility"],
 			"keywords":null,
 			"last_test_date":"2023-12-16",
 			"test_url":"https://www.caniemail.com/tests/html-img.html",
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-			"stats":{"apple-mail":{"macos":{"10.3":"y","16.0":"y"},"ios":{"10.3":"y","12.3":"y","16.2":"y"}},"gmail":{"desktop-webmail":{"2019-06":"a #1","2023-01":"a #1"},"ios":{"2019-06":"a #1 #2","2023-01":"a #1 #2"},"android":{"2019-06":"a #1 #2"},"mobile-webmail":{"2020-02":"n","2023-01":"n"}},"orange":{"desktop-webmail":{"2019-06":"y","2021-03":"y","2023-02":"y"},"ios":{"2019-06":"y","2023-02":"y"},"android":{"2019-06":"n","2019-08":"y","2023-02":"y"}},"outlook":{"windows":{"2003":"y","2007":"a #4","2010":"a #4","2013":"a #4","2016":"a #4","2019":"a #4"},"windows-mail":{"2020-01":"a #4","2023-01":"a #4"},"macos":{"2011":"y","2016":"y","2019":"y","2021":"y","16.80":"y"},"outlook-com":{"2019-06":"y","2023-01":"y","2024-01":"y"},"ios":{"2019-06":"y","2023-01":"y"},"android":{"2019-06":"y"}},"samsung-email":{"android":{"5.0.10.2":"y","6.0":"y"}},"sfr":{"desktop-webmail":{"2019-06":"y","2023-02":"y"},"ios":{"2019-06":"n","2023-02":"n"},"android":{"2019-06":"n","2023-02":"n"}},"thunderbird":{"macos":{"60.3":"y","102.7":"y"},"windows":{"102.7":"y"}},"aol":{"desktop-webmail":{"2020-01":"y","2023-01":"y"},"ios":{"2020-01":"y","2023-01":"y"},"android":{"2020-01":"y"}},"yahoo":{"desktop-webmail":{"2019-06":"y #5","2023-01":"y"},"ios":{"2019-06":"y","2023-01":"y"},"android":{"2019-06":"a #3","2023-01":"a #3"}},"protonmail":{"desktop-webmail":{"2020-03":"n","2022-02":"y","2023-01":"y"},"ios":{"2020-03":"n","2023-01":"a #1"},"android":{"2020-03":"a #1"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-09":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"y"}},"laposte":{"desktop-webmail":{"2021-08":"y"},"ios":{"2023-02":"n"},"android":{"2023-02":"n"}},"gmx":{"desktop-webmail":{"2022-11":"y","2023-07":"n"},"ios":{"2022-11":"y"},"android":{"2022-11":"y"}},"web-de":{"desktop-webmail":{"2022-11":"y"},"ios":{"2022-11":"y"},"android":{"2022-11":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-11":"y"},"android":{"2022-11":"y"}},"rainloop":{"desktop-webmail":{"2023-02":"n"}},"wp-pl":{"desktop-webmail":{"2023-12":"y"}}},
+			"test_results_url":"https://app.emailonacid.com/app/acidtest/CAMb612bxbVwRWPhM4wZKNhhdcdkNxj0Rj6dtRRw6LQUO/list",
+			"stats":{"apple-mail":{"macos":{"10.3":"y","16.0":"y"},"ios":{"10.3":"y","12.3":"y","16.2":"y"}},"gmail":{"desktop-webmail":{"2019-06":"a #1","2023-01":"a #1"},"ios":{"2019-06":"a #1 #2","2023-01":"a #1 #2"},"android":{"2019-06":"a #1 #2"},"mobile-webmail":{"2020-02":"n","2023-01":"n"}},"orange":{"desktop-webmail":{"2019-06":"y","2021-03":"y","2023-02":"y"},"ios":{"2019-06":"y","2023-02":"y"},"android":{"2019-06":"n","2019-08":"y","2023-02":"y"}},"outlook":{"windows":{"2003":"y","2007":"a #4","2010":"a #4","2013":"a #4","2016":"a #4","2019":"a #4"},"windows-mail":{"2020-01":"a #4","2023-01":"a #4"},"macos":{"2011":"y","2016":"y","2019":"y","2021":"y","16.80":"y"},"outlook-com":{"2019-06":"y","2023-01":"y","2024-01":"y"},"ios":{"2019-06":"y","2023-01":"y"},"android":{"2019-06":"y"}},"samsung-email":{"android":{"5.0.10.2":"y","6.0":"y"}},"sfr":{"desktop-webmail":{"2019-06":"y","2023-02":"y","2025-07":"n"},"ios":{"2019-06":"n","2023-02":"n","2025-07":"n"},"android":{"2019-06":"n","2023-02":"n"}},"thunderbird":{"macos":{"60.3":"y","102.7":"y"},"windows":{"102.7":"y"}},"aol":{"desktop-webmail":{"2020-01":"y","2023-01":"y"},"ios":{"2020-01":"y","2023-01":"y"},"android":{"2020-01":"y"}},"yahoo":{"desktop-webmail":{"2019-06":"y #5","2023-01":"y"},"ios":{"2019-06":"y","2023-01":"y"},"android":{"2019-06":"a #3","2023-01":"a #3"}},"protonmail":{"desktop-webmail":{"2020-03":"n","2022-02":"y","2023-01":"y"},"ios":{"2020-03":"n","2023-01":"a #1"},"android":{"2020-03":"a #1"}},"hey":{"desktop-webmail":{"2020-06":"y"}},"mail-ru":{"desktop-webmail":{"2020-09":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"y"}},"laposte":{"desktop-webmail":{"2021-08":"y","2025-07":"n"},"ios":{"2023-02":"n","2025-07":"n"},"android":{"2023-02":"n"}},"gmx":{"desktop-webmail":{"2022-11":"y","2023-07":"n"},"ios":{"2022-11":"y"},"android":{"2022-11":"y"}},"web-de":{"desktop-webmail":{"2022-11":"y","2025-04":"n"},"ios":{"2022-11":"y"},"android":{"2022-11":"y"}},"ionos-1and1":{"desktop-webmail":{"2022-11":"y"},"android":{"2022-11":"y"}},"rainloop":{"desktop-webmail":{"2023-02":"n"}},"wp-pl":{"desktop-webmail":{"2023-12":"y"}}},
 			"notes":"",
 			"notes_by_num":{"1":"Partial. Not supported inside the `<body>`.","2":"Partial. Not supported with non Google accounts.","3":"Buggy. The first `<head>` in the HTML is removed, so `<style>` elements need to be in a second `<head>` element.","4":"Buggy. `<style>` elements need to be declared before their rules are used.","5":"A CSS rule following a CSS comment is ignored. (See [email-bugs#25](https://github.com/hteumeuleu/email-bugs/issues/25).)"}
 		},

internal/htmlcheck/config.go

@@ -38,167 +38,178 @@ var htmlTests = map[string]string{
 
 // Image tests using regex to match against img[src]
 var imageRegexpTests = map[string]*regexp.Regexp{
-	"image-apng":   regexp.MustCompile(`(?i)\.apng$`),       // 78.723404
-	"image-avif":   regexp.MustCompile(`(?i)\.avif$`),       // 14.864864
-	"image-base64": regexp.MustCompile(`^(?i)data:image\/`), // 61.702126
-	"image-bmp":    regexp.MustCompile(`(?i)\.bmp$`),        // 89.3617
-	"image-gif":    regexp.MustCompile(`(?i)\.gif$`),        // 89.3617
-	"image-hdr":    regexp.MustCompile(`(?i)\.hdr$`),        // 12.5
-	"image-heif":   regexp.MustCompile(`(?i)\.heif$`),       // 0
-	"image-ico":    regexp.MustCompile(`(?i)\.ico$`),        // 87.23404
-	"image-mp4":    regexp.MustCompile(`(?i)\.mp4$`),        // 26.53061
-	"image-ppm":    regexp.MustCompile(`(?i)\.ppm$`),        // 2.0833282
-	"image-svg":    regexp.MustCompile(`(?i)\.svg$`),        // 64.91228
-	"image-tiff":   regexp.MustCompile(`(?i)\.tiff?$`),      // 38.29787
-	"image-webp":   regexp.MustCompile(`(?i)\.webp$`),       // 59.649124
+	"image-apng":   regexp.MustCompile(`(?i)\.apng$`),
+	"image-avif":   regexp.MustCompile(`(?i)\.avif$`),
+	"image-base64": regexp.MustCompile(`^(?i)data:image\/`),
+	"image-bmp":    regexp.MustCompile(`(?i)\.bmp$`),
+	"image-gif":    regexp.MustCompile(`(?i)\.gif$`),
+	"image-hdr":    regexp.MustCompile(`(?i)\.hdr$`),
+	"image-heif":   regexp.MustCompile(`(?i)\.heif$`),
+	"image-ico":    regexp.MustCompile(`(?i)\.ico$`),
+	"image-mp4":    regexp.MustCompile(`(?i)\.mp4$`),
+	"image-ppm":    regexp.MustCompile(`(?i)\.ppm$`),
+	"image-svg":    regexp.MustCompile(`(?i)\.svg$`),
+	"image-tiff":   regexp.MustCompile(`(?i)\.tiff?$`),
+	"image-webp":   regexp.MustCompile(`(?i)\.webp$`),
 }
 
-var cssInlineTests = map[string]string{
-	"css-accent-color":                   "[style*=\"accent-color:\"]",                                           // 6.6666718
-	"css-align-items":                    "[style*=\"align-items:\"]",                                            // 60.784313
-	"css-aspect-ratio":                   "[style*=\"aspect-ratio:\"]",                                           // 30
-	"css-background-blend-mode":          "[style*=\"background-blend-mode:\"]",                                  // 61.70213
-	"css-background-clip":                "[style*=\"background-clip:\"]",                                        // 61.70213
-	"css-background-color":               "[style*=\"background-color:\"], [bgcolor]",                            // 90
-	"css-background-image":               "[style*=\"background-image:\"]",                                       // 57.62712
-	"css-background-origin":              "[style*=\"background-origin:\"]",                                      // 61.70213
-	"css-background-position":            "[style*=\"background-position:\"]",                                    // 61.224487
-	"css-background-repeat":              "[style*=\"background-repeat:\"]",                                      // 67.34694
-	"css-background-size":                "[style*=\"background-size:\"]",                                        // 61.702126
-	"css-background":                     "[style*=\"background:\"], [background]",                               // 57.407406
-	"css-block-inline-size":              "[style*=\"block-inline-size:\"]",                                      // 46.93877
-	"css-border-image":                   "[style*=\"border-image:\"]",                                           // 52.173912
-	"css-border-inline-block-individual": "[style*=\"border-inline:\"]",                                          // 18.518517
-	"css-border-radius":                  "[style*=\"border-radius:\"]",                                          // 67.34694
-	"css-border":                         "[style*=\"border:\"], [border]",                                       // 86.95652
-	"css-box-shadow":                     "[style*=\"box-shadow:\"]",                                             // 43.103447
-	"css-box-sizing":                     "[style*=\"box-sizing:\"]",                                             // 71.739136
-	"css-caption-side":                   "[style*=\"caption-side:\"]",                                           // 84
-	"css-clip-path":                      "[style*=\"clip-path:\"]",                                              // 43.396225
-	"css-column-count":                   "[style*=\"column-count:\"]",                                           // 67.391304
-	"css-column-layout-properties":       "[style*=\"column-layout-properties:\"]",                               // 47.368423
-	"css-conic-gradient":                 "[style*=\"conic-gradient:\"]",                                         // 38.461536
-	"css-direction":                      "[style*=\"direction:\"]",                                              // 97.77778
-	"css-display-flex":                   "[style*=\"display:flex\"]",                                            // 53.448277
-	"css-display-grid":                   "[style*=\"display:grid\"]",                                            // 54.347824
-	"css-display-none":                   "[style*=\"display:none\"]",                                            // 84.78261
-	"css-display":                        "[style*=\"display:\"]",                                                // 55.555553
-	"css-filter":                         "[style*=\"filter:\"]",                                                 // 50
-	"css-flex-direction":                 "[style*=\"flex-direction:\"]",                                         // 50
-	"css-flex-wrap":                      "[style*=\"flex-wrap:\"]",                                              // 49.09091
-	"css-float":                          "[style*=\"float:\"]",                                                  // 85.10638
-	"css-font-kerning":                   "[style*=\"font-kerning:\"]",                                           // 66.666664
-	"css-font-weight":                    "[style*=\"font-weight:\"]",                                            // 76.666664
-	"css-font":                           "[style*=\"font:\"]",                                                   // 95.833336
-	"css-gap":                            "[style*=\"gap:\"]",                                                    // 40
-	"css-grid-template":                  "[style*=\"grid-template:\"]",                                          // 34.042553
-	"css-height":                         "[style*=\"height:\"], [height]",                                       // 77.08333
-	"css-hyphens":                        "[style*=\"hyphens:\"]",                                                // 31.111107
-	"css-important":                      "[style*=\"!important\"]",                                              // 43.478264
-	"css-inline-size":                    "[style*=\"inline-size:\"]",                                            // 43.478264
-	"css-intrinsic-size":                 "[style*=\"intrinsic-size:\"]",                                         // 40.54054
-	"css-justify-content":                "[style*=\"justify-content:\"]",                                        // 59.25926
-	"css-letter-spacing":                 "[style*=\"letter-spacing:\"]",                                         // 87.23404
-	"css-line-height":                    "[style*=\"line-height:\"]",                                            // 82.608696
-	"css-list-style-image":               "[style*=\"list-style-image:\"]",                                       // 54.16667
-	"css-list-style-position":            "[style*=\"list-style-position:\"]",                                    // 87.5
-	"css-list-style":                     "[style*=\"list-style:\"]",                                             // 62.500004
-	"css-margin-block-start-end":         "[style*=\"margin-block-start:\"], [style*=\"margin-block-end:\"]",     // 32.07547
-	"css-margin-inline-block":            "[style*=\"margin-inline-block:\"]",                                    // 16.981125
-	"css-margin-inline-start-end":        "[style*=\"margin-inline-start:\"], [style*=\"margin-inline-end:\"]",   // 32.07547
-	"css-margin-inline":                  "[style*=\"margin-inline:\"]",                                          // 43.39623
-	"css-margin":                         "[style*=\"margin:\"]",                                                 // 71.42857
-	"css-max-block-size":                 "[style*=\"max-block-size:\"]",                                         // 35.714287
-	"css-max-height":                     "[style*=\"max-height:\"]",                                             // 86.95652
-	"css-max-width":                      "[style*=\"max-width:\"]",                                              // 76.47058
-	"css-min-height":                     "[style*=\"min-height:\"]",                                             // 82.608696
-	"css-min-inline-size":                "[style*=\"min-inline-size:\"]",                                        // 33.33333
-	"css-min-width":                      "[style*=\"min-width:\"]",                                              // 86.95652
-	"css-mix-blend-mode":                 "[style*=\"mix-blend-mode:\"]",                                         // 62.745094
-	"css-modern-color":                   "[style*=\"modern-color:\"]",                                           // 10.81081
-	"css-object-fit":                     "[style*=\"object-fit:\"]",                                             // 57.142857
-	"css-object-position":                "[style*=\"object-position:\"]",                                        // 55.10204
-	"css-opacity":                        "[style*=\"opacity:\"]",                                                // 63.04348
-	"css-outline-offset":                 "[style*=\"outline-offset:\"]",                                         // 42.5
-	"css-outline":                        "[style*=\"outline:\"]",                                                // 80.85106
-	"css-overflow-wrap":                  "[style*=\"overflow-wrap:\"]",                                          // 6.6666603
-	"css-overflow":                       "[style*=\"overflow:\"]",                                               // 78.26087
-	"css-padding-block-start-end":        "[style*=\"padding-block-start:\"], [style*=\"padding-block-end:\"]",   // 32.07547
-	"css-padding-inline-block":           "[style*=\"padding-inline-block:\"]",                                   // 16.981125
-	"css-padding-inline-start-end":       "[style*=\"padding-inline-start:\"], [style*=\"padding-inline-end:\"]", // 32.07547
-	"css-padding":                        "[style*=\"padding:\"], [padding]",                                     // 87.755104
-	"css-position":                       "[style*=\"position:\"]",                                               // 19.56522
-	"css-radial-gradient":                "[style*=\"radial-gradient:\"]",                                        // 64.583336
-	"css-rgb":                            "[style*=\"rgb(\"]",                                                    // 53.846153
-	"css-rgba":                           "[style*=\"rgba(\"]",                                                   // 56
-	"css-scroll-snap":                    "[style*=\"roll-snap:\"]",                                              // 38.88889
-	"css-tab-size":                       "[style*=\"tab-size:\"]",                                               // 32.075474
-	"css-table-layout":                   "[style*=\"table-layout:\"]",                                           // 53.33333
-	"css-text-align-last":                "[style*=\"text-align-last:\"]",                                        // 42.307693
-	"css-text-align":                     "[style*=\"text-align:\"]",                                             // 60.416664
-	"css-text-decoration-color":          "[style*=\"text-decoration-color:\"]",                                  // 67.34695
-	"css-text-decoration-thickness":      "[style*=\"text-decoration-thickness:\"]",                              // 38.333336
-	"css-text-decoration":                "[style*=\"text-decoration:\"]",                                        // 67.391304
-	"css-text-emphasis-position":         "[style*=\"text-emphasis-position:\"]",                                 // 28.571434
-	"css-text-emphasis":                  "[style*=\"text-emphasis:\"]",                                          // 36.734695
-	"css-text-indent":                    "[style*=\"text-indent:\"]",                                            // 78.43137
-	"css-text-overflow":                  "[style*=\"text-overflow:\"]",                                          // 58.695656
-	"css-text-shadow":                    "[style*=\"text-shadow:\"]",                                            // 69.565216
-	"css-text-transform":                 "[style*=\"text-transform:\"]",                                         // 86.666664
-	"css-text-underline-offset":          "[style*=\"text-underline-offset:\"]",                                  // 39.285713
-	"css-transform":                      "[style*=\"transform:\"]",                                              // 50
-	"css-unit-calc":                      "[style*=\"calc(:\"]",                                                  // 56.25
-	"css-variables":                      "[style*=\"variables:\"]",                                              // 46.551727
-	"css-visibility":                     "[style*=\"visibility:\"]",                                             // 52.173916
-	"css-white-space":                    "[style*=\"white-space:\"]",                                            // 58.69565
-	"css-width":                          "[style*=\"width:\"], [width]",                                         // 87.5
-	"css-word-break":                     "[style*=\"word-break:\"]",                                             // 28.888887
-	"css-writing-mode":                   "[style*=\"writing-mode:\"]",                                           // 56.25
-	"css-z-index":                        "[style*=\"z-index:\"]",                                                // 76.08696
+// inline attribute <match>=""
+var styleInlineAttributes = map[string]string{
+	"css-background-color": "[bgcolor]",
+	"css-background":       "[background]",
+	"css-border":           "[border]",
+	"css-height":           "[height]",
+	"css-padding":          "[padding]",
+	"css-width":            "[width]",
+}
+
+// inline style="<match>"
+var cssInlineRegexTests = map[string]*regexp.Regexp{
+	"css-accent-color":                   regexp.MustCompile(`(?i)(^|\s|;)accent-color(\s+)?:`),
+	"css-align-items":                    regexp.MustCompile(`(?i)(^|\s|;)align-items(\s+)?:`),
+	"css-aspect-ratio":                   regexp.MustCompile(`(?i)(^|\s|;)aspect-ratio(\s+)?:`),
+	"css-background-blend-mode":          regexp.MustCompile(`(?i)(^|\s|;)background-blend-mode(\s+)?:`),
+	"css-background-clip":                regexp.MustCompile(`(?i)(^|\s|;)background-clip(\s+)?:`),
+	"css-background-color":               regexp.MustCompile(`(?i)(^|\s|;)background-color(\s+)?:`),
+	"css-background-image":               regexp.MustCompile(`(?i)(^|\s|;)background-image(\s+)?:`),
+	"css-background-origin":              regexp.MustCompile(`(?i)(^|\s|;)background-origin(\s+)?:`),
+	"css-background-position":            regexp.MustCompile(`(?i)(^|\s|;)background-position(\s+)?:`),
+	"css-background-repeat":              regexp.MustCompile(`(?i)(^|\s|;)background-repeat(\s+)?:`),
+	"css-background-size":                regexp.MustCompile(`(?i)(^|\s|;)background-size(\s+)?:`),
+	"css-background":                     regexp.MustCompile(`(?i)(^|\s|;)background(\s+)?:`),
+	"css-block-inline-size":              regexp.MustCompile(`(?i)(^|\s|;)block-inline-size(\s+)?:`),
+	"css-border-image":                   regexp.MustCompile(`(?i)(^|\s|;)border-image(\s+)?:`),
+	"css-border-inline-block-individual": regexp.MustCompile(`(?i)(^|\s|;)border-inline(\s+)?:`),
+	"css-border-radius":                  regexp.MustCompile(`(?i)(^|\s|;)border-radius(\s+)?:`),
+	"css-border":                         regexp.MustCompile(`(?i)(^|\s|;)border(\s+)?:`),
+	"css-box-shadow":                     regexp.MustCompile(`(?i)(^|\s|;)box-shadow(\s+)?:`),
+	"css-box-sizing":                     regexp.MustCompile(`(?i)(^|\s|;)box-sizing(\s+)?:`),
+	"css-caption-side":                   regexp.MustCompile(`(?i)(^|\s|;)caption-side(\s+)?:`),
+	"css-clip-path":                      regexp.MustCompile(`(?i)(^|\s|;)clip-path(\s+)?:`),
+	"css-column-count":                   regexp.MustCompile(`(?i)(^|\s|;)column-count(\s+)?:`),
+	"css-column-layout-properties":       regexp.MustCompile(`(?i)(^|\s|;)column-layout-properties(\s+)?:`),
+	"css-conic-gradient":                 regexp.MustCompile(`(?i)(^|\s|;)conic-gradient(\s+)?:`),
+	"css-direction":                      regexp.MustCompile(`(?i)(^|\s|;)direction(\s+)?:`),
+	"css-display-flex":                   regexp.MustCompile(`(?i)(^|\s|;)display(\s+)?:(\s+)?flex($|\s|;)`),
+	"css-display-grid":                   regexp.MustCompile(`(?i)(^|\s|;)display:grid`),
+	"css-display-none":                   regexp.MustCompile(`(?i)(^|\s|;)display:none`),
+	"css-display":                        regexp.MustCompile(`(?i)(^|\s|;)display(\s+)?:`),
+	"css-filter":                         regexp.MustCompile(`(?i)(^|\s|;)filter(\s+)?:`),
+	"css-flex-direction":                 regexp.MustCompile(`(?i)(^|\s|;)flex-direction(\s+)?:`),
+	"css-flex-wrap":                      regexp.MustCompile(`(?i)(^|\s|;)flex-wrap(\s+)?:`),
+	"css-float":                          regexp.MustCompile(`(?i)(^|\s|;)float(\s+)?:`),
+	"css-font-kerning":                   regexp.MustCompile(`(?i)(^|\s|;)font-kerning(\s+)?:`),
+	"css-font-weight":                    regexp.MustCompile(`(?i)(^|\s|;)font-weight(\s+)?:`),
+	"css-font":                           regexp.MustCompile(`(?i)(^|\s|;)font(\s+)?:`),
+	"css-gap":                            regexp.MustCompile(`(?i)(^|\s|;)gap(\s+)?:`),
+	"css-grid-template":                  regexp.MustCompile(`(?i)(^|\s|;)grid-template(\s+)?:`),
+	"css-height":                         regexp.MustCompile(`(?i)(^|\s|;)height(\s+)?:`),
+	"css-hyphens":                        regexp.MustCompile(`(?i)(^|\s|;)hyphens(\s+)?:`),
+	"css-important":                      regexp.MustCompile(`(?i)!important($|\s|;)`),
+	"css-inline-size":                    regexp.MustCompile(`(?i)(^|\s|;)inline-size(\s+)?:`),
+	"css-intrinsic-size":                 regexp.MustCompile(`(?i)(^|\s|;)intrinsic-size(\s+)?:`),
+	"css-justify-content":                regexp.MustCompile(`(?i)(^|\s|;)justify-content(\s+)?:`),
+	"css-letter-spacing":                 regexp.MustCompile(`(?i)(^|\s|;)letter-spacing(\s+)?:`),
+	"css-line-height":                    regexp.MustCompile(`(?i)(^|\s|;)line-height(\s+)?:`),
+	"css-list-style-image":               regexp.MustCompile(`(?i)(^|\s|;)list-style-image(\s+)?:`),
+	"css-list-style-position":            regexp.MustCompile(`(?i)(^|\s|;)list-style-position(\s+)?:`),
+	"css-list-style":                     regexp.MustCompile(`(?i)(^|\s|;)list-style(\s+)?:`),
+	"css-margin-block-start-end":         regexp.MustCompile(`(?i)(^|\s|;)margin-block-(start|end)(\s+)?:`),
+	"css-margin-inline-block":            regexp.MustCompile(`(?i)(^|\s|;)margin-inline-block(\s+)?:`),
+	"css-margin-inline-start-end":        regexp.MustCompile(`(?i)(^|\s|;)margin-inline-(start|end)(\s+)?:`),
+	"css-margin-inline":                  regexp.MustCompile(`(?i)(^|\s|;)margin-inline(\s+)?:`),
+	"css-margin":                         regexp.MustCompile(`(?i)(^|\s|;)margin(\s+)?:`),
+	"css-max-block-size":                 regexp.MustCompile(`(?i)(^|\s|;)max-block-size(\s+)?:`),
+	"css-max-height":                     regexp.MustCompile(`(?i)(^|\s|;)max-height(\s+)?:`),
+	"css-max-width":                      regexp.MustCompile(`(?i)(^|\s|;)max-width(\s+)?:`),
+	"css-min-height":                     regexp.MustCompile(`(?i)(^|\s|;)min-height(\s+)?:`),
+	"css-min-inline-size":                regexp.MustCompile(`(?i)(^|\s|;)min-inline-size(\s+)?:`),
+	"css-min-width":                      regexp.MustCompile(`(?i)(^|\s|;)min-width(\s+)?:`),
+	"css-mix-blend-mode":                 regexp.MustCompile(`(?i)(^|\s|;)mix-blend-mode(\s+)?:`),
+	"css-modern-color":                   regexp.MustCompile(`(?i)(^|\s|;)modern-color(\s+)?:`),
+	"css-object-fit":                     regexp.MustCompile(`(?i)(^|\s|;)object-fit(\s+)?:`),
+	"css-object-position":                regexp.MustCompile(`(?i)(^|\s|;)object-position(\s+)?:`),
+	"css-opacity":                        regexp.MustCompile(`(?i)(^|\s|;)opacity(\s+)?:`),
+	"css-outline-offset":                 regexp.MustCompile(`(?i)(^|\s|;)outline-offset(\s+)?:`),
+	"css-outline":                        regexp.MustCompile(`(?i)(^|\s|;)outline(\s+)?:`),
+	"css-overflow-wrap":                  regexp.MustCompile(`(?i)(^|\s|;)overflow-wrap(\s+)?:`),
+	"css-overflow":                       regexp.MustCompile(`(?i)(^|\s|;)overflow(\s+)?:`),
+	"css-padding-block-start-end":        regexp.MustCompile(`(?i)(^|\s|;)padding-block-(start|end)(\s+)?:`),
+	"css-padding-inline-block":           regexp.MustCompile(`(?i)(^|\s|;)padding-inline-block(\s+)?:`),
+	"css-padding-inline-start-end":       regexp.MustCompile(`(?i)(^|\s|;)padding-inline-(start|end)(\s+)?:`),
+	"css-padding":                        regexp.MustCompile(`(?i)(^|\s|;)padding(\s+)?:`),
+	"css-position":                       regexp.MustCompile(`(?i)(^|\s|;)position(\s+)?:`),
+	"css-radial-gradient":                regexp.MustCompile(`(?i)(^|\s|;)radial-gradient(\s+)?:`),
+	"css-rgb":                            regexp.MustCompile(`(?i)(\s|:)rgb\(`),
+	"css-rgba":                           regexp.MustCompile(`(?i)(\s|:)rgba\(`),
+	"css-scroll-snap":                    regexp.MustCompile(`(?i)(^|\s|;)roll-snap(\s+)?:`),
+	"css-tab-size":                       regexp.MustCompile(`(?i)(^|\s|;)tab-size(\s+)?:`),
+	"css-table-layout":                   regexp.MustCompile(`(?i)(^|\s|;)table-layout(\s+)?:`),
+	"css-text-align-last":                regexp.MustCompile(`(?i)(^|\s|;)text-align-last(\s+)?:`),
+	"css-text-align":                     regexp.MustCompile(`(?i)(^|\s|;)text-align(\s+)?:`),
+	"css-text-decoration-color":          regexp.MustCompile(`(?i)(^|\s|;)text-decoration-color(\s+)?:`),
+	"css-text-decoration-thickness":      regexp.MustCompile(`(?i)(^|\s|;)text-decoration-thickness(\s+)?:`),
+	"css-text-decoration":                regexp.MustCompile(`(?i)(^|\s|;)text-decoration(\s+)?:`),
+	"css-text-emphasis-position":         regexp.MustCompile(`(?i)(^|\s|;)text-emphasis-position(\s+)?:`),
+	"css-text-emphasis":                  regexp.MustCompile(`(?i)(^|\s|;)text-emphasis(\s+)?:`),
+	"css-text-indent":                    regexp.MustCompile(`(?i)(^|\s|;)text-indent(\s+)?:`),
+	"css-text-overflow":                  regexp.MustCompile(`(?i)(^|\s|;)text-overflow(\s+)?:`),
+	"css-text-shadow":                    regexp.MustCompile(`(?i)(^|\s|;)text-shadow(\s+)?:`),
+	"css-text-transform":                 regexp.MustCompile(`(?i)(^|\s|;)text-transform(\s+)?:`),
+	"css-text-underline-offset":          regexp.MustCompile(`(?i)(^|\s|;)text-underline-offset(\s+)?:`),
+	"css-transform":                      regexp.MustCompile(`(?i)(^|\s|;)transform(\s+)?:`),
+	"css-unit-calc":                      regexp.MustCompile(`(?i)(\s|:)calc\(`),
+	"css-variables":                      regexp.MustCompile(`(?i)(^|\s|;)variables(\s+)?:`),
+	"css-visibility":                     regexp.MustCompile(`(?i)(^|\s|;)visibility(\s+)?:`),
+	"css-white-space":                    regexp.MustCompile(`(?i)(^|\s|;)white-space(\s+)?:`),
+	"css-width":                          regexp.MustCompile(`(?i)(^|\s|;)width(\s+)?:`),
+	"css-word-break":                     regexp.MustCompile(`(?i)(^|\s|;)word-break(\s+)?:`),
+	"css-writing-mode":                   regexp.MustCompile(`(?i)(^|\s|;)writing-mode(\s+)?:`),
+	"css-z-index":                        regexp.MustCompile(`(?i)(^|\s|;)z-index(\s+)?:`),
 }
 
 // some CSS tests using regex for things that can't be merged inline
 var cssRegexpTests = map[string]*regexp.Regexp{
-	"css-at-font-face":                  regexp.MustCompile(`(?mi)@font\-face\s+?{`),        // 26.923073
-	"css-at-import":                     regexp.MustCompile(`(?mi)@import\s`),               // 36.170216
-	"css-at-keyframes":                  regexp.MustCompile(`(?mi)@keyframes\s`),            // 31.914898
-	"css-at-media":                      regexp.MustCompile(`(?mi)@media\s?\(`),             // 47.05882
-	"css-at-supports":                   regexp.MustCompile(`(?mi)@supports\s?\(`),          // 40.81633
-	"css-pseudo-class-active":           regexp.MustCompile(`:active`),                      // 52.173912
-	"css-pseudo-class-checked":          regexp.MustCompile(`:checked`),                     // 31.91489
-	"css-pseudo-class-first-child":      regexp.MustCompile(`:first\-child`),                // 66.666664
-	"css-pseudo-class-first-of-type":    regexp.MustCompile(`:first\-of\-type`),             // 62.5
-	"css-pseudo-class-focus":            regexp.MustCompile(`:focus`),                       // 47.826088
-	"css-pseudo-class-has":              regexp.MustCompile(`:has`),                         // 25.531914
-	"css-pseudo-class-hover":            regexp.MustCompile(`:hover`),                       // 60.41667
-	"css-pseudo-class-lang":             regexp.MustCompile(`:lang\s?\(`),                   // 18.918922
-	"css-pseudo-class-last-child":       regexp.MustCompile(`:last\-child`),                 // 64.58333
-	"css-pseudo-class-last-of-type":     regexp.MustCompile(`:last\-of\-type`),              // 60.416664
-	"css-pseudo-class-link":             regexp.MustCompile(`:link`),                        // 81.63265
-	"css-pseudo-class-not":              regexp.MustCompile(`:not(\s+)?\(`),                 // 44.89796
-	"css-pseudo-class-nth-child":        regexp.MustCompile(`:nth\-child(\s+)?\(`),          // 44.89796
-	"css-pseudo-class-nth-last-child":   regexp.MustCompile(`:nth\-last\-child(\s+)?\(`),    // 44.89796
-	"css-pseudo-class-nth-last-of-type": regexp.MustCompile(`:nth\-last\-of\-type(\s+)?\(`), // 42.857143
-	"css-pseudo-class-nth-of-type":      regexp.MustCompile(`:nth\-of\-type(\s+)?\(`),       // 42.857143
-	"css-pseudo-class-only-child":       regexp.MustCompile(`:only\-child(\s+)?\(`),         // 64.58333
-	"css-pseudo-class-only-of-type":     regexp.MustCompile(`:only\-of\-type(\s+)?\(`),      // 64.58333
-	"css-pseudo-class-target":           regexp.MustCompile(`:target`),                      // 39.13044
-	"css-pseudo-class-visited":          regexp.MustCompile(`:visited`),                     // 39.13044
-	"css-pseudo-element-after":          regexp.MustCompile(`:after`),                       // 40
-	"css-pseudo-element-before":         regexp.MustCompile(`:before`),                      // 40
-	"css-pseudo-element-first-letter":   regexp.MustCompile(`::first\-letter`),              // 60
-	"css-pseudo-element-first-line":     regexp.MustCompile(`::first\-line`),                // 60
-	"css-pseudo-element-marker":         regexp.MustCompile(`::marker`),                     // 50
-	"css-pseudo-element-placeholder":    regexp.MustCompile(`::placeholder`),                // 32
+	"css-at-font-face":                  regexp.MustCompile(`(?mi)@font\-face\s+?{`),
+	"css-at-import":                     regexp.MustCompile(`(?mi)@import\s`),
+	"css-at-keyframes":                  regexp.MustCompile(`(?mi)@keyframes\s`),
+	"css-at-media":                      regexp.MustCompile(`(?mi)@media\s?\(`),
+	"css-at-supports":                   regexp.MustCompile(`(?mi)@supports\s?\(`),
+	"css-pseudo-class-active":           regexp.MustCompile(`:active`),
+	"css-pseudo-class-checked":          regexp.MustCompile(`:checked`),
+	"css-pseudo-class-first-child":      regexp.MustCompile(`:first\-child`),
+	"css-pseudo-class-first-of-type":    regexp.MustCompile(`:first\-of\-type`),
+	"css-pseudo-class-focus":            regexp.MustCompile(`:focus`),
+	"css-pseudo-class-has":              regexp.MustCompile(`:has`),
+	"css-pseudo-class-hover":            regexp.MustCompile(`:hover`),
+	"css-pseudo-class-lang":             regexp.MustCompile(`:lang\s?\(`),
+	"css-pseudo-class-last-child":       regexp.MustCompile(`:last\-child`),
+	"css-pseudo-class-last-of-type":     regexp.MustCompile(`:last\-of\-type`),
+	"css-pseudo-class-link":             regexp.MustCompile(`:link`),
+	"css-pseudo-class-not":              regexp.MustCompile(`:not(\s+)?\(`),
+	"css-pseudo-class-nth-child":        regexp.MustCompile(`:nth\-child(\s+)?\(`),
+	"css-pseudo-class-nth-last-child":   regexp.MustCompile(`:nth\-last\-child(\s+)?\(`),
+	"css-pseudo-class-nth-last-of-type": regexp.MustCompile(`:nth\-last\-of\-type(\s+)?\(`),
+	"css-pseudo-class-nth-of-type":      regexp.MustCompile(`:nth\-of\-type(\s+)?\(`),
+	"css-pseudo-class-only-child":       regexp.MustCompile(`:only\-child(\s+)?\(`),
+	"css-pseudo-class-only-of-type":     regexp.MustCompile(`:only\-of\-type(\s+)?\(`),
+	"css-pseudo-class-target":           regexp.MustCompile(`:target`),
+	"css-pseudo-class-visited":          regexp.MustCompile(`:visited`),
+	"css-pseudo-element-after":          regexp.MustCompile(`:after`),
+	"css-pseudo-element-before":         regexp.MustCompile(`:before`),
+	"css-pseudo-element-first-letter":   regexp.MustCompile(`::first\-letter`),
+	"css-pseudo-element-first-line":     regexp.MustCompile(`::first\-line`),
+	"css-pseudo-element-marker":         regexp.MustCompile(`::marker`),
+	"css-pseudo-element-placeholder":    regexp.MustCompile(`::placeholder`),
 }
 
 // some CSS tests using regex for units
 var cssRegexpUnitTests = map[string]*regexp.Regexp{
-	"css-unit-ch":      regexp.MustCompile(`\b\d+ch\b`),     // 66.666664
-	"css-unit-initial": regexp.MustCompile(`:\s?initial\b`), // 58.33333
-	"css-unit-rem":     regexp.MustCompile(`\b\d+rem\b`),    // 66.666664
-	"css-unit-vh":      regexp.MustCompile(`\b\d+vh\b`),     // 68.75
-	"css-unit-vmax":    regexp.MustCompile(`\b\d+vmax\b`),   // 60.416664
-	"css-unit-vmin":    regexp.MustCompile(`\b\d+vmin\b`),   // 58.333336
-	"css-unit-vw":      regexp.MustCompile(`\b\d+vw\b`),     // 77.08333
+	"css-unit-ch":      regexp.MustCompile(`\b\d+ch\b`),
+	"css-unit-initial": regexp.MustCompile(`:\s?initial\b`),
+	"css-unit-rem":     regexp.MustCompile(`\b\d+rem\b`),
+	"css-unit-vh":      regexp.MustCompile(`\b\d+vh\b`),
+	"css-unit-vmax":    regexp.MustCompile(`\b\d+vmax\b`),
+	"css-unit-vmin":    regexp.MustCompile(`\b\d+vmin\b`),
+	"css-unit-vw":      regexp.MustCompile(`\b\d+vw\b`),
 }

internal/htmlcheck/css.go

@@ -42,17 +42,15 @@ func runCSSTests(html string) ([]Warning, int, error) {
 		return results, totalTests, err
 	}
 
-	for key, test := range cssInlineTests {
-		totalTests++
-		found := len(doc.Find(test).Nodes)
-		if found > 0 {
-			result, err := cie.getTest(key)
-			if err != nil {
-				return results, totalTests, err
-			}
-			result.Score.Found = found
+	inlineStyleResults := testInlineStyles(doc)
+	totalTests = totalTests + len(cssInlineRegexTests) + len(styleInlineAttributes)
+	for key, count := range inlineStyleResults {
+		result, err := cie.getTest(key)
+		if err == nil {
+			result.Score.Found = count
 			results = append(results, result)
 		}
+
 	}
 
 	// get a list of all generated styles from all nodes
@@ -195,10 +193,10 @@ func downloadToBytes(url string) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	defer resp.Body.Close()
+	defer func() { _ = resp.Body.Close() }()
 
 	if resp.StatusCode != 200 {
-		err := fmt.Errorf("Error downloading %s", url)
+		err := fmt.Errorf("error downloading %s", url)
 		return nil, err
 	}
 
@@ -215,3 +213,39 @@ func isURL(str string) bool {
 	u, err := url.Parse(str)
 	return err == nil && (u.Scheme == "http" || u.Scheme == "https") && u.Host != ""
 }
+
+// Test the HTML for inline CSS styles and styling attributes
+func testInlineStyles(doc *goquery.Document) map[string]int {
+	matches := make(map[string]int)
+
+	// find all elements containing a style attribute
+	styles := doc.Find("[style]").Nodes
+	for _, s := range styles {
+		style, err := tools.GetHTMLAttributeVal(s, "style")
+		if err != nil {
+			continue
+		}
+
+		for id, test := range cssInlineRegexTests {
+			if test.MatchString(style) {
+				if _, ok := matches[id]; !ok {
+					matches[id] = 0
+				}
+				matches[id]++
+			}
+		}
+	}
+
+	// find all elements containing styleInlineAttributes
+	for id, test := range styleInlineAttributes {
+		a := doc.Find(test).Nodes
+		if len(a) > 0 {
+			if _, ok := matches[id]; !ok {
+				matches[id] = 0
+			}
+			matches[id]++
+		}
+	}
+
+	return matches
+}

internal/htmlcheck/inline_test.go

@@ -0,0 +1,81 @@
+package htmlcheck
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+	"testing"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+func TestInlineStyleDetection(t *testing.T) {
+	/// tests should contain the HTML test, and expected test results in alphabetical order
+	tests := map[string]string{}
+	tests[`<h1 style="transform: rotate(20deg)">Heading</h1>`] = "css-transform"
+	tests[`<h1 style="color: green; transform:rotate(20deg)">Heading</h1>`] = "css-transform"
+	tests[`<h1 style="color:green; transform :rotate(20deg)">Heading</h1>`] = "css-transform"
+	tests[`<h1 style="transform:rotate(20deg)">Heading</h1>`] = "css-transform"
+	tests[`<h1 style="TRANSFORM:rotate(20deg)">Heading</h1>`] = "css-transform"
+	tests[`<h1 style="transform:	rotate(20deg)">Heading</h1>`] = "css-transform"
+	tests[`<h1 style="ignore-transform: something">Heading</h1>`] = "" // no match
+	tests[`<h1 style="text-transform: uppercase">Heading</h1>`] = "css-text-transform"
+	tests[`<h1 style="text-transform: uppercase; text-transform: uppercase">Heading</h1>`] = "css-text-transform"
+	tests[`<h1 style="test-transform: uppercase">Heading</h1>`] = "" // no match
+	tests[`<h1 style="padding-inline-start: 5rem">Heading</h1>`] = "css-padding-inline-start-end"
+	tests[`<h1 style="margin-inline-end: 5rem">Heading</h1>`] = "css-margin-inline-start-end"
+	tests[`<h1 style="margin-inline-middle: 5rem">Heading</h1>`] = "" // no match
+	tests[`<h1 style="color:green!important">Heading</h1>`] = "css-important"
+	tests[`<h1 style="color: green !important">Heading</h1>`] = "css-important"
+	tests[`<h1 style="color: green!important;">Heading</h1>`] = "css-important"
+	tests[`<h1 style="color:green!important-stuff;">Heading</h1>`] = "" // no match
+	tests[`<h1 style="background-image:url('img.jpg')">Heading</h1>`] = "css-background-image"
+	tests[`<h1 style="background-image:url('img.jpg'); color: green">Heading</h1>`] = "css-background-image"
+	tests[`<h1 style=" color:green; background-image:url('img.jpg');">Heading</h1>`] = "css-background-image"
+	tests[`<h1 style="display  : flex ;">Heading</h1>`] = "css-display,css-display-flex"
+	tests[`<h1 style="DISPLAY:FLEX;">Heading</h1>`] = "css-display,css-display-flex"
+	tests[`<h1 style="display: flexing;">Heading</h1>`] = "css-display" // should not match css-display-flex rule
+	tests[`<h1 style="line-height: 1rem;opacity: 0.5; width: calc(10px + 100px)">Heading</h1>`] = "css-line-height,css-opacity,css-unit-calc,css-width"
+	tests[`<h1 style="color: rgb(255,255,255);">Heading</h1>`] = "css-rgb"
+	tests[`<h1 style="color:rgb(255,255,255);">Heading</h1>`] = "css-rgb"
+	tests[`<h1 style="color:rgb(255,255,255);">Heading</h1>`] = "css-rgb"
+	tests[`<h1 style="color:rgba(255,255,255, 0);">Heading</h1>`] = "css-rgba"
+	tests[`<h1 style="border: solid rgb(255,255,255) 1px; color:rgba(255,255,255, 0);">Heading</h1>`] = "css-border,css-rgb,css-rgba"
+	tests[`<h1 border="2">Heading</h1>`] = "css-border"
+	tests[`<h1 border="2" background="green">Heading</h1>`] = "css-background,css-border"
+	tests[`<h1 BORDER="2" BACKGROUND="GREEN">Heading</h1>`] = "css-background,css-border"
+	tests[`<h1 border-something="2" background-something="green">Heading</h1>`] = "" // no match
+	tests[`<h1 border="2" style="border: solid green 1px!important">Heading</h1>`] = "css-border,css-important"
+
+	for html, expected := range tests {
+		reader := strings.NewReader(html)
+		doc, err := goquery.NewDocumentFromReader(reader)
+		if err != nil {
+			t.Log("error ", err)
+			t.Fail()
+		}
+
+		results := testInlineStyles(doc)
+
+		matches := []string{}
+		uniqMap := make(map[string]bool)
+		for key := range results {
+			if _, exists := uniqMap[key]; !exists {
+				matches = append(matches, key)
+			}
+		}
+
+		// ensure results are sorted to ensure consistent results
+		sort.Strings(matches)
+
+		assertEqual(t, expected, strings.Join(matches, ","), fmt.Sprintf("inline style detection \"%s\"", html))
+	}
+}
+
+func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
+	if a == b {
+		return
+	}
+	message = fmt.Sprintf("%s: \"%v\" != \"%v\"", message, a, b)
+	t.Fatal(message)
+}

internal/htmlcheck/main.go

@@ -152,13 +152,14 @@ func (c CanIEmail) getTest(k string) (Warning, error) {
 				s.Platform = platform
 				s.Version = version
 
-				if support == "y" {
+				switch support {
+				case "y":
 					y++
 					s.Support = "yes"
-				} else if support == "n" {
+				case "n":
 					n++
 					s.Support = "no"
-				} else {
+				default:
 					p++
 					s.Support = "partial"
 

internal/linkcheck/linkcheck_test.go

@@ -31,7 +31,14 @@ var (
 	</html>`
 
 	expectedHTMLLinks = []string{
-		"http://example.com", "https://example.com", "HTTPS://EXAMPLE.COM", "http://localhost", "https://localhost", "https://127.0.0.1", "http://link with spaces", "http://example.com/?blaah=yes&test=true",
+		"http://example.com",
+		"https://example.com",
+		"HTTPS://EXAMPLE.COM",
+		"http://localhost",
+		"https://localhost",
+		"https://127.0.0.1",
+		"http://link with spaces",
+		"http://example.com/?blaah=yes&test=true",
 		"http://remote-host/style.css",  // css
 		"https://example.com/image.jpg", // images
 	}
@@ -41,10 +48,18 @@ var (
 		[http://localhost]
 		www.google.com < ignored
 		|||http://example.com/?some=query-string|||
+		// RFC2396 appendix E states angle brackets are recommended for text/plain emails to
+		// recognize potential spaces in between the URL
+		<https://example.com/ link with spaces>
 	`
 
 	expectedTextLinks = []string{
-		"http://example.com", "https://example.com", "HTTPS://EXAMPLE.COM", "http://localhost", "http://example.com/?some=query-string",
+		"http://example.com",
+		"https://example.com",
+		"HTTPS://EXAMPLE.COM",
+		"http://localhost",
+		"http://example.com/?some=query-string",
+		"https://example.com/ link with spaces",
 	}
 )
 

internal/linkcheck/main.go

@@ -30,9 +30,28 @@ func RunTests(msg *storage.Message, followRedirects bool) (Response, error) {
 }
 
 func extractTextLinks(msg *storage.Message) []string {
+	testLinkRe := regexp.MustCompile(`(?im)([^<]\b)((http|https):\/\/([\-\w@:%_\+'!.~#?,&\/\/=;]+))`)
+	// RFC2396 appendix E states angle brackets are recommended for text/plain emails to
+	// recognize potential spaces in between the URL
+	// @see https://www.rfc-editor.org/rfc/rfc2396#appendix-E
+	bracketLinkRe := regexp.MustCompile(`(?im)<((http|https):\/\/([\-\w@:%_\+'!.~#?,&\/\/=;][^>]+))>`)
+
 	links := []string{}
 
-	links = append(links, linkRe.FindAllString(msg.Text, -1)...)
+	matches := testLinkRe.FindAllStringSubmatch(msg.Text, -1)
+	for _, match := range matches {
+		if len(match) > 0 {
+			links = append(links, match[2])
+		}
+	}
+
+	angleMatches := bracketLinkRe.FindAllStringSubmatch(msg.Text, -1)
+	for _, match := range angleMatches {
+		if len(match) > 0 {
+			link := strings.ReplaceAll(match[1], "\n", "")
+			links = append(links, link)
+		}
+	}
 
 	return links
 }

internal/logger/logger.go

@@ -66,17 +66,6 @@ func PrettyPrint(i interface{}) {
 	fmt.Println(string(s))
 }
 
-// CleanIP returns a human-readable IP for the logging interface
-// when starting services. It translates [::]:<port> to "0.0.0.0:<port>"
-func CleanIP(s string) string {
-	re := regexp.MustCompile(`^\[\:\:\]\:\d+`)
-	if re.MatchString(s) {
-		return "0.0.0.0:" + s[5:]
-	}
-
-	return s
-}
-
 // CleanHTTPIP returns a human-readable IP for the logging interface
 // when starting services. It translates [::]:<port> to "localhost:<port>"
 func CleanHTTPIP(s string) string {

internal/pop3/functions.go

@@ -18,7 +18,7 @@ func authUser(username, password string) bool {
 
 // Send a response with debug logging
 func sendResponse(c net.Conn, m string) {
-	fmt.Fprintf(c, "%s\r\n", m)
+	_, _ = fmt.Fprintf(c, "%s\r\n", m)
 	logger.Log().Debugf("[pop3] response: %s", m)
 
 	if strings.HasPrefix(m, "-ERR ") {
@@ -29,7 +29,7 @@ func sendResponse(c net.Conn, m string) {
 
 // Send a response without debug logging (for data)
 func sendData(c net.Conn, m string) {
-	fmt.Fprintf(c, "%s\r\n", m)
+	_, _ = fmt.Fprintf(c, "%s\r\n", m)
 }
 
 // Get the latest 100 messages

internal/pop3/pop3_test.go

@@ -15,7 +15,7 @@ import (
 	"github.com/axllent/mailpit/internal/logger"
 	"github.com/axllent/mailpit/internal/pop3client"
 	"github.com/axllent/mailpit/internal/storage"
-	"github.com/jhillyerd/enmime"
+	"github.com/jhillyerd/enmime/v2"
 )
 
 var (
@@ -29,22 +29,21 @@ func TestPOP3(t *testing.T) {
 
 	// connect with bad password
 	t.Log("Testing invalid login")
-	c, err := connectBadAuth()
-	if err == nil {
+	if _, err := connectBadAuth(); err == nil {
 		t.Error("invalid login gained access")
 		return
 	}
 
 	t.Log("Testing valid login")
-	c, err = connectAuth()
+	c, err := connectAuth()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	count, size, err := c.Stat()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -53,7 +52,7 @@ func TestPOP3(t *testing.T) {
 
 	// quit else we get old data
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -63,13 +62,13 @@ func TestPOP3(t *testing.T) {
 
 	c, err = connectAuth()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	count, _, err = c.Stat()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -80,7 +79,7 @@ func TestPOP3(t *testing.T) {
 	for i := 1; i <= 20; i++ {
 		_, err := c.Retr(i)
 		if err != nil {
-			t.Errorf(err.Error())
+			t.Error(err.Error())
 			return
 		}
 	}
@@ -89,20 +88,23 @@ func TestPOP3(t *testing.T) {
 
 	for i := 1; i <= 25; i++ {
 		if err := c.Dele(i); err != nil {
-			t.Errorf(err.Error())
+			t.Error(err.Error())
 			return
 		}
 	}
 
 	// messages get deleted after a QUIT
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
+	// allow for background delete when using rqlite driver
+	time.Sleep(time.Millisecond * 200)
+
 	c, err = connectAuth()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -110,7 +112,7 @@ func TestPOP3(t *testing.T) {
 
 	count, _, err = c.Stat()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -118,13 +120,13 @@ func TestPOP3(t *testing.T) {
 
 	// messages get deleted after a QUIT
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	c, err = connectAuth()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -132,7 +134,7 @@ func TestPOP3(t *testing.T) {
 
 	for i := 1; i <= 25; i++ {
 		if err := c.Dele(i); err != nil {
-			t.Errorf(err.Error())
+			t.Error(err.Error())
 			return
 		}
 	}
@@ -140,31 +142,31 @@ func TestPOP3(t *testing.T) {
 	t.Log("Undeleting messages")
 
 	if err := c.Rset(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	c, err = connectAuth()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	count, _, err = c.Stat()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
 	assertEqual(t, count, 25, "incorrect message count")
 
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 }
@@ -187,7 +189,7 @@ func TestAuthentication(t *testing.T) {
 	// non-authenticated connection
 	c, err := connect()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -204,7 +206,7 @@ func TestAuthentication(t *testing.T) {
 	}
 
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -213,7 +215,7 @@ func TestAuthentication(t *testing.T) {
 	// authenticated connection
 	c, err = connectAuth()
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 
@@ -230,13 +232,15 @@ func TestAuthentication(t *testing.T) {
 	}
 
 	if err := c.Quit(); err != nil {
-		t.Errorf(err.Error())
+		t.Error(err.Error())
 		return
 	}
 }
 
 func setup() {
-	auth.SetPOP3Auth("username:password")
+	if err := auth.SetPOP3Auth("username:password"); err != nil {
+		panic(err)
+	}
 	logger.NoLogging = true
 	config.MaxMessages = 0
 	config.Database = os.Getenv("MP_DATABASE")
@@ -343,7 +347,7 @@ func insertEmailData(t *testing.T) {
 
 		bufBytes := buf.Bytes()
 
-		id, err := storage.Store(&bufBytes)
+		id, err := storage.Store(&bufBytes, nil)
 		if err != nil {
 			t.Log("error ", err)
 			t.Fail()

internal/pop3/server.go

@@ -80,7 +80,7 @@ func Run() {
 
 type message struct {
 	ID   string
-	Size float64
+	Size uint64
 }
 
 func handleClient(conn net.Conn) {
@@ -211,22 +211,33 @@ func handleClient(conn net.Conn) {
 func handleTransactionCommand(conn net.Conn, cmd string, args []string, messages []message, toDelete *[]string) {
 	switch cmd {
 	case "STAT":
-		totalSize := float64(0)
+		totalSize := uint64(0)
 		for _, m := range messages {
 			totalSize += m.Size
 		}
-		sendResponse(conn, fmt.Sprintf("+OK %d %d", len(messages), int64(totalSize)))
+		sendResponse(conn, fmt.Sprintf("+OK %d %d", len(messages), totalSize))
 	case "LIST":
-		totalSize := float64(0)
+		totalSize := uint64(0)
 		for _, m := range messages {
 			totalSize += m.Size
 		}
-		sendResponse(conn, fmt.Sprintf("+OK %d messages (%d octets)", len(messages), int64(totalSize)))
 
-		for row, m := range messages {
-			sendResponse(conn, fmt.Sprintf("%d %d", row+1, int64(m.Size))) // Convert Size to int64 when printing
+		if len(args) > 0 {
+			arg, _ := getSafeArg(args, 0)
+			nr, err := strconv.Atoi(arg)
+			if err != nil || nr < 1 || nr > len(messages) {
+				sendResponse(conn, "-ERR no such message")
+				return
+			}
+			sendResponse(conn, fmt.Sprintf("+OK %d %d", nr, messages[nr-1].Size))
+		} else {
+			sendResponse(conn, fmt.Sprintf("+OK %d messages (%d octets)", len(messages), totalSize))
+
+			for row, m := range messages {
+				sendResponse(conn, fmt.Sprintf("%d %d", row+1, m.Size))
+			}
+			sendResponse(conn, ".")
 		}
-		sendResponse(conn, ".")
 	case "UIDL":
 		sendResponse(conn, "+OK unique-id listing follows")
 		for row, m := range messages {
@@ -260,7 +271,7 @@ func handleTransactionCommand(conn net.Conn, cmd string, args []string, messages
 		// begins with the termination octet, the line is "byte-stuffed" by
 		// pre-pending the termination octet to that line of the response.
 		// @see: https://www.ietf.org/rfc/rfc1939.txt
-		sendData(conn, strings.Replace(string(raw), "\n.", "\n..", -1))
+		sendData(conn, strings.ReplaceAll(string(raw), "\n.", "\n.."))
 		sendResponse(conn, ".")
 	case "TOP":
 		arg, err := getSafeArg(args, 0)

internal/pop3client/client.go

@@ -422,7 +422,7 @@ func (c *Conn) Noop() error {
 // Message deletions (DELE command) are only executed by the server on a graceful
 // quit and close.
 func (c *Conn) Quit() error {
-	defer c.conn.Close()
+	defer func() { _ = c.conn.Close() }()
 
 	if _, err := c.Cmd("QUIT", false); err != nil {
 		return err

internal/prometheus/metrics.go

@@ -0,0 +1,191 @@
+// Package prometheus provides Prometheus metrics for Mailpit
+package prometheus
+
+import (
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/stats"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+)
+
+var (
+	// Registry is the Prometheus registry for Mailpit metrics
+	Registry = prometheus.NewRegistry()
+
+	// Metrics
+	totalMessages    prometheus.Gauge
+	unreadMessages   prometheus.Gauge
+	databaseSize     prometheus.Gauge
+	messagesDeleted  prometheus.Counter
+	smtpAccepted     prometheus.Counter
+	smtpRejected     prometheus.Counter
+	smtpIgnored      prometheus.Counter
+	smtpAcceptedSize prometheus.Counter
+	uptime           prometheus.Gauge
+	memoryUsage      prometheus.Gauge
+	tagCounters      *prometheus.GaugeVec
+)
+
+// InitMetrics initializes all Prometheus metrics
+func initMetrics() {
+	// Create metrics
+	totalMessages = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "mailpit_messages",
+		Help: "Total number of messages in the database",
+	})
+
+	unreadMessages = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "mailpit_messages_unread",
+		Help: "Number of unread messages in the database",
+	})
+
+	databaseSize = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "mailpit_database_size_bytes",
+		Help: "Size of the database in bytes",
+	})
+
+	messagesDeleted = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "mailpit_messages_deleted_total",
+		Help: "Total number of messages deleted",
+	})
+
+	smtpAccepted = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "mailpit_smtp_accepted_total",
+		Help: "Total number of SMTP messages accepted",
+	})
+
+	smtpRejected = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "mailpit_smtp_rejected_total",
+		Help: "Total number of SMTP messages rejected",
+	})
+
+	smtpIgnored = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "mailpit_smtp_ignored_total",
+		Help: "Total number of SMTP messages ignored (duplicates)",
+	})
+
+	smtpAcceptedSize = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "mailpit_smtp_accepted_size_bytes_total",
+		Help: "Total size of accepted SMTP messages in bytes",
+	})
+
+	uptime = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "mailpit_uptime_seconds",
+		Help: "Uptime of Mailpit in seconds",
+	})
+
+	memoryUsage = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "mailpit_memory_usage_bytes",
+		Help: "Memory usage in bytes",
+	})
+
+	tagCounters = prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Name: "mailpit_tag_messages",
+			Help: "Number of messages per tag",
+		},
+		[]string{"tag"},
+	)
+
+	// Register metrics
+	Registry.MustRegister(totalMessages)
+	Registry.MustRegister(unreadMessages)
+	Registry.MustRegister(databaseSize)
+	Registry.MustRegister(messagesDeleted)
+	Registry.MustRegister(smtpAccepted)
+	Registry.MustRegister(smtpRejected)
+	Registry.MustRegister(smtpIgnored)
+	Registry.MustRegister(smtpAcceptedSize)
+	Registry.MustRegister(uptime)
+	Registry.MustRegister(memoryUsage)
+	Registry.MustRegister(tagCounters)
+}
+
+// UpdateMetrics updates all metrics with current values
+func updateMetrics() {
+	info := stats.Load(false)
+
+	totalMessages.Set(float64(info.Messages))
+	unreadMessages.Set(float64(info.Unread))
+	databaseSize.Set(float64(info.DatabaseSize))
+	messagesDeleted.Add(float64(info.RuntimeStats.MessagesDeleted))
+	smtpAccepted.Add(float64(info.RuntimeStats.SMTPAccepted))
+	smtpRejected.Add(float64(info.RuntimeStats.SMTPRejected))
+	smtpIgnored.Add(float64(info.RuntimeStats.SMTPIgnored))
+	smtpAcceptedSize.Add(float64(info.RuntimeStats.SMTPAcceptedSize))
+	uptime.Set(float64(info.RuntimeStats.Uptime))
+	memoryUsage.Set(float64(info.RuntimeStats.Memory))
+
+	// Reset tag counters
+	tagCounters.Reset()
+
+	// Update tag counters
+	for tag, count := range info.Tags {
+		tagCounters.WithLabelValues(tag).Set(float64(count))
+	}
+}
+
+// GetHandler returns the Prometheus handler & disables double compression in middleware
+func GetHandler() http.Handler {
+	return promhttp.HandlerFor(Registry, promhttp.HandlerOpts{
+		DisableCompression: true,
+	})
+}
+
+// StartUpdater starts the periodic metrics update routine
+func StartUpdater() {
+	initMetrics()
+	updateMetrics()
+
+	// Start periodic updates
+	go func() {
+		ticker := time.NewTicker(15 * time.Second)
+		defer ticker.Stop()
+
+		for range ticker.C {
+			updateMetrics()
+		}
+	}()
+}
+
+// StartSeparateServer starts a separate HTTP server for Prometheus metrics
+func StartSeparateServer() {
+	StartUpdater()
+
+	logger.Log().Infof("[prometheus] metrics server listening on %s", config.PrometheusListen)
+
+	// Create a dedicated mux for the metrics server
+	mux := http.NewServeMux()
+	mux.Handle("/metrics", promhttp.HandlerFor(Registry, promhttp.HandlerOpts{}))
+
+	// Create a dedicated server instance
+	server := &http.Server{
+		Addr:              config.PrometheusListen,
+		Handler:           mux,
+		ReadHeaderTimeout: 5 * time.Second,
+	}
+
+	// Start HTTP server
+	if err := server.ListenAndServe(); err != nil {
+		logger.Log().Errorf("[prometheus] metrics server error: %s", err.Error())
+	}
+}
+
+// GetMode returns the Prometheus run mode
+func GetMode() string {
+	mode := strings.ToLower(strings.TrimSpace(config.PrometheusListen))
+
+	switch mode {
+	case "false", "":
+		return "disabled"
+	case "true":
+		return "integrated"
+	default:
+		return "separate"
+	}
+}

internal/smtpd/chaos/chaos.go

@@ -0,0 +1,123 @@
+// Package chaos is used to simulate Chaos engineering (random failures) in the SMTPD server.
+// See https://en.wikipedia.org/wiki/Chaos_engineering
+// See https://mailpit.axllent.org/docs/integration/chaos/
+package chaos
+
+import (
+	"crypto/rand"
+	"fmt"
+	"math/big"
+	"strings"
+
+	"github.com/axllent/mailpit/internal/logger"
+)
+
+var (
+	// Enabled is a flag to enable or disable support for chaos
+	Enabled = false
+
+	// Config is the global Chaos configuration
+	Config = Triggers{
+		Sender:         Trigger{ErrorCode: 451, Probability: 0},
+		Recipient:      Trigger{ErrorCode: 451, Probability: 0},
+		Authentication: Trigger{ErrorCode: 535, Probability: 0},
+	}
+)
+
+// Triggers for the Chaos configuration
+//
+// swagger:model ChaosTriggers
+type Triggers struct {
+	// Sender trigger to fail on From, Sender
+	Sender Trigger
+	// Recipient trigger to fail on To, Cc, Bcc
+	Recipient Trigger
+	// Authentication trigger to fail while authenticating (auth must be configured)
+	Authentication Trigger
+}
+
+// Trigger for Chaos
+//
+// swagger:model ChaosTrigger
+type Trigger struct {
+	// SMTP error code to return. The value must range from 400 to 599.
+	// required: true
+	// example: 451
+	ErrorCode int
+
+	// Probability (chance) of triggering the error. The value must range from 0 to 100.
+	// required: true
+	// example: 5
+	Probability int
+}
+
+// SetFromStruct will set a whole map of chaos configurations (ie: API)
+func SetFromStruct(c Triggers) error {
+	if c.Sender.ErrorCode == 0 {
+		c.Sender.ErrorCode = 451 // default
+	}
+
+	if c.Recipient.ErrorCode == 0 {
+		c.Recipient.ErrorCode = 451 // default
+	}
+
+	if c.Authentication.ErrorCode == 0 {
+		c.Authentication.ErrorCode = 535 // default
+	}
+
+	if err := Set("Sender", c.Sender.ErrorCode, c.Sender.Probability); err != nil {
+		return err
+	}
+	if err := Set("Recipient", c.Recipient.ErrorCode, c.Recipient.Probability); err != nil {
+		return err
+	}
+	if err := Set("Authentication", c.Authentication.ErrorCode, c.Authentication.Probability); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Set will set the chaos configuration for the given key (CLI & setMap())
+func Set(key string, errorCode int, probability int) error {
+	Enabled = true
+	if errorCode < 400 || errorCode > 599 {
+		return fmt.Errorf("error code must be between 400 and 599")
+	}
+
+	if probability > 100 || probability < 0 {
+		return fmt.Errorf("probability must be between 0 and 100")
+	}
+
+	key = strings.ToLower(key)
+
+	switch key {
+	case "sender":
+		Config.Sender = Trigger{ErrorCode: errorCode, Probability: probability}
+		logger.Log().Infof("[chaos] Sender to return %d error with %d%% probability", errorCode, probability)
+	case "recipient", "recipients":
+		Config.Recipient = Trigger{ErrorCode: errorCode, Probability: probability}
+		logger.Log().Infof("[chaos] Recipient to return %d error with %d%% probability", errorCode, probability)
+	case "auth", "authentication":
+		Config.Authentication = Trigger{ErrorCode: errorCode, Probability: probability}
+		logger.Log().Infof("[chaos] Authentication to return %d error with %d%% probability", errorCode, probability)
+	default:
+		return fmt.Errorf("unknown key %s", key)
+	}
+
+	return nil
+}
+
+// Trigger will return whether the Chaos rule is triggered based on the configuration
+// and a randomly-generated percentage value.
+func (c Trigger) Trigger() (bool, int) {
+	if !Enabled || c.Probability == 0 {
+		return false, 0
+	}
+
+	nBig, _ := rand.Int(rand.Reader, big.NewInt(100))
+
+	// rand.IntN(100) will return 0-99, whereas probability is 1-100,
+	// so value must be less than (not <=) to the probability to trigger
+	return int(nBig.Int64()) < c.Probability, c.ErrorCode
+}

internal/smtpd/forward.go

@@ -0,0 +1,139 @@
+package smtpd
+
+import (
+	"crypto/tls"
+	"fmt"
+	"net/smtp"
+	"strings"
+
+	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/tools"
+)
+
+// Wrapper to forward messages if configured
+func autoForwardMessage(from string, data *[]byte) {
+	if config.SMTPForwardConfig.Host == "" {
+		return
+	}
+
+	if err := forward(from, *data); err != nil {
+		logger.Log().Errorf("[forward] error: %s", err.Error())
+	} else {
+		logger.Log().Debugf("[forward] message from %s to %s via %s:%d",
+			from, config.SMTPForwardConfig.To, config.SMTPForwardConfig.Host, config.SMTPForwardConfig.Port)
+	}
+}
+
+func createForwardingSMTPClient(config config.SMTPForwardConfigStruct, addr string) (*smtp.Client, error) {
+	if config.TLS {
+		tlsConf := &tls.Config{ServerName: config.Host} // #nosec
+		tlsConf.InsecureSkipVerify = config.AllowInsecure
+
+		conn, err := tls.Dial("tcp", addr, tlsConf)
+		if err != nil {
+			return nil, fmt.Errorf("TLS dial error: %v", err)
+		}
+
+		client, err := smtp.NewClient(conn, tlsConf.ServerName)
+		if err != nil {
+			_ = conn.Close()
+			return nil, fmt.Errorf("SMTP client error: %v", err)
+		}
+
+		// Note: The caller is responsible for closing the client
+		return client, nil
+	}
+
+	client, err := smtp.Dial(addr)
+	if err != nil {
+		return nil, fmt.Errorf("error connecting to %s: %v", addr, err)
+	}
+
+	if config.STARTTLS {
+		tlsConf := &tls.Config{ServerName: config.Host} // #nosec
+		tlsConf.InsecureSkipVerify = config.AllowInsecure
+
+		if err = client.StartTLS(tlsConf); err != nil {
+			_ = client.Close()
+			return nil, fmt.Errorf("error creating StartTLS config: %v", err)
+		}
+	}
+
+	// Note: The caller is responsible for closing the client
+	return client, nil
+}
+
+// Forward will connect to a pre-configured SMTP server and send a message to one or more recipients.
+func forward(from string, msg []byte) error {
+	addr := fmt.Sprintf("%s:%d", config.SMTPForwardConfig.Host, config.SMTPForwardConfig.Port)
+
+	c, err := createForwardingSMTPClient(config.SMTPForwardConfig, addr)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = c.Close() }()
+
+	auth := forwardAuthFromConfig()
+
+	if auth != nil {
+		if err = c.Auth(auth); err != nil {
+			return fmt.Errorf("error response to AUTH command: %s", err.Error())
+		}
+	}
+
+	if config.SMTPForwardConfig.OverrideFrom != "" {
+		msg, err = tools.OverrideFromHeader(msg, config.SMTPForwardConfig.OverrideFrom)
+		if err != nil {
+			return fmt.Errorf("error overriding From header: %s", err.Error())
+		}
+
+		from = config.SMTPForwardConfig.OverrideFrom
+	}
+
+	if err = c.Mail(from); err != nil {
+		return fmt.Errorf("error response to MAIL command: %s", err.Error())
+	}
+
+	to := strings.Split(config.SMTPForwardConfig.To, ",")
+
+	for _, addr := range to {
+		if err = c.Rcpt(addr); err != nil {
+			logger.Log().Warnf("error response to RCPT command for %s: %s", addr, err.Error())
+		}
+	}
+
+	w, err := c.Data()
+	if err != nil {
+		return fmt.Errorf("error response to DATA command: %s", err.Error())
+	}
+
+	if _, err := w.Write(msg); err != nil {
+		return fmt.Errorf("error sending message: %s", err.Error())
+	}
+
+	if err := w.Close(); err != nil {
+		return fmt.Errorf("error closing connection: %s", err.Error())
+	}
+
+	return c.Quit()
+}
+
+// Return the SMTP forwarding authentication based on config
+func forwardAuthFromConfig() smtp.Auth {
+	var a smtp.Auth
+
+	if config.SMTPForwardConfig.Auth == "plain" {
+		a = smtp.PlainAuth("", config.SMTPForwardConfig.Username, config.SMTPForwardConfig.Password, config.SMTPForwardConfig.Host)
+	}
+
+	if config.SMTPForwardConfig.Auth == "login" {
+		a = LoginAuth(config.SMTPForwardConfig.Username, config.SMTPForwardConfig.Password)
+	}
+
+	if config.SMTPForwardConfig.Auth == "cram-md5" {
+		a = smtp.CRAMMD5Auth(config.SMTPForwardConfig.Username, config.SMTPForwardConfig.Secret)
+	}
+
+	return a
+}

internal/smtpd/main.go

@@ -28,13 +28,13 @@ var (
 )
 
 // MailHandler handles the incoming message to store in the database
-func mailHandler(origin net.Addr, from string, to []string, data []byte) (string, error) {
-	return SaveToDatabase(origin, from, to, data)
+func mailHandler(origin net.Addr, from string, to []string, data []byte, smtpUser *string) (string, error) {
+	return SaveToDatabase(origin, from, to, data, smtpUser)
 }
 
 // SaveToDatabase will attempt to save a message to the database
-func SaveToDatabase(origin net.Addr, from string, to []string, data []byte) (string, error) {
-	if !config.SMTPStrictRFCHeaders {
+func SaveToDatabase(origin net.Addr, from string, to []string, data []byte, smtpUser *string) (string, error) {
+	if !config.SMTPStrictRFCHeaders && bytes.Contains(data, []byte("\r\r\n")) {
 		// replace all <CR><CR><LF> (\r\r\n) with <CR><LF> (\r\n)
 		// @see https://github.com/axllent/mailpit/issues/87 & https://github.com/axllent/mailpit/issues/153
 		data = bytes.ReplaceAll(data, []byte("\r\r\n"), []byte("\r\n"))
@@ -50,32 +50,20 @@ func SaveToDatabase(origin net.Addr, from string, to []string, data []byte) (str
 	// check / set the Return-Path based on SMTP from
 	returnPath := strings.Trim(msg.Header.Get("Return-Path"), "<>")
 	if returnPath != from {
-		if returnPath != "" {
-			// replace Return-Path
-			re := regexp.MustCompile(`(?i)(^|\n)(Return\-Path: .*\n)`)
-			replaced := false
-			data = re.ReplaceAllFunc(data, func(r []byte) []byte {
-				if replaced {
-					return r
-				}
-				replaced = true // only replace first occurrence
-
-				return re.ReplaceAll(r, []byte("${1}Return-Path: <"+from+">\r\n"))
-			})
-		} else {
-			// add Return-Path
-			data = append([]byte("Return-Path: <"+from+">\r\n"), data...)
+		data, err = tools.SetMessageHeader(data, "Return-Path", "<"+from+">")
+		if err != nil {
+			return "", err
 		}
 	}
 
-	messageID := strings.Trim(msg.Header.Get("Message-Id"), "<>")
+	messageID := strings.Trim(msg.Header.Get("Message-ID"), "<>")
 
 	// add a message ID if not set
 	if messageID == "" {
 		// generate unique ID
 		messageID = shortuuid.New() + "@mailpit"
 		// add unique ID
-		data = append([]byte("Message-Id: <"+messageID+">\r\n"), data...)
+		data = append([]byte("Message-ID: <"+messageID+">\r\n"), data...)
 	} else if config.IgnoreDuplicateIDs {
 		if storage.MessageIDExists(messageID) {
 			logger.Log().Debugf("[smtpd] duplicate message found, ignoring %s", messageID)
@@ -87,6 +75,9 @@ func SaveToDatabase(origin net.Addr, from string, to []string, data []byte) (str
 	// if enabled, this may conditionally relay the email through to the preconfigured smtp server
 	autoRelayMessage(from, to, &data)
 
+	// if enabled, this will forward a copy to preconfigured addresses
+	autoForwardMessage(from, &data)
+
 	// build array of all addresses in the header to compare to the []to array
 	emails, hasBccHeader := scanAddressesInHeader(msg.Header)
 
@@ -105,29 +96,21 @@ func SaveToDatabase(origin net.Addr, from string, to []string, data []byte) (str
 
 	// add missing email addresses to Bcc (eg: Laravel doesn't include these in the headers)
 	if len(missingAddresses) > 0 {
+		bccVal := strings.Join(missingAddresses, ", ")
 		if hasBccHeader {
-			// email already has Bcc header, add to existing addresses
-			re := regexp.MustCompile(`(?i)(^|\n)(Bcc: )`)
-			replaced := false
-			data = re.ReplaceAllFunc(data, func(r []byte) []byte {
-				if replaced {
-					return r
-				}
-				replaced = true // only replace first occurrence
+			b := msg.Header.Get("Bcc")
+			bccVal = ", " + b
+		}
 
-				return re.ReplaceAll(r, []byte("${1}Bcc: "+strings.Join(missingAddresses, ", ")+", "))
-			})
-
-		} else {
-			// prepend new Bcc header
-			bcc := []byte(fmt.Sprintf("Bcc: %s\r\n", strings.Join(missingAddresses, ", ")))
-			data = append(bcc, data...)
+		data, err = tools.SetMessageHeader(data, "Bcc", bccVal)
+		if err != nil {
+			return "", err
 		}
 
 		logger.Log().Debugf("[smtpd] added missing addresses to Bcc header: %s", strings.Join(missingAddresses, ", "))
 	}
 
-	id, err := storage.Store(&data)
+	id, err := storage.Store(&data, smtpUser)
 	if err != nil {
 		logger.Log().Errorf("[db] error storing message: %s", err.Error())
 		return "", err
@@ -211,15 +194,16 @@ func listenAndServe(addr string, handler MsgIDHandler, authHandler AuthHandler)
 
 	Debug = true // to enable Mailpit logging
 	srv := &Server{
-		Addr:              addr,
-		MsgIDHandler:      handler,
-		HandlerRcpt:       handlerRcpt,
-		AppName:           "Mailpit",
-		Hostname:          "",
-		AuthHandler:       nil,
-		AuthRequired:      false,
-		MaxRecipients:     config.SMTPMaxRecipients,
-		DisableReverseDNS: DisableReverseDNS,
+		Addr:                     addr,
+		MsgIDHandler:             handler,
+		HandlerRcpt:              handlerRcpt,
+		AppName:                  "Mailpit",
+		Hostname:                 "",
+		AuthHandler:              nil,
+		AuthRequired:             false,
+		MaxRecipients:            config.SMTPMaxRecipients,
+		IgnoreRejectedRecipients: config.SMTPIgnoreRejectedRecipients,
+		DisableReverseDNS:        DisableReverseDNS,
 		LogRead: func(remoteIP, verb, line string) {
 			logger.Log().Debugf("[smtpd] %s (%s) %s", verbLogTranslator(verb), remoteIP, line)
 		},
@@ -279,10 +263,10 @@ func listenAndServe(addr string, handler MsgIDHandler, authHandler AuthHandler)
 		smtpType := "no encryption"
 
 		if config.SMTPTLSCert != "" {
-			if config.SMTPRequireSTARTTLS {
-				smtpType = "STARTTLS required"
-			} else if config.SMTPRequireTLS {
+			if config.SMTPRequireTLS {
 				smtpType = "SSL/TLS required"
+			} else if config.SMTPRequireSTARTTLS {
+				smtpType = "STARTTLS required"
 			} else {
 				smtpType = "STARTTLS optional"
 				if !config.SMTPAuthAllowInsecure && auth.SMTPCredentials != nil {

internal/smtpd/relay.go

@@ -9,14 +9,16 @@ import (
 
 	"github.com/axllent/mailpit/config"
 	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/tools"
 )
 
+// Wrapper to auto relay messages if configured
 func autoRelayMessage(from string, to []string, data *[]byte) {
 	if config.SMTPRelayConfig.BlockedRecipientsRegexp != nil {
 		filteredTo := []string{}
 		for _, address := range to {
 			if config.SMTPRelayConfig.BlockedRecipientsRegexp.MatchString(address) {
-				logger.Log().Debugf("[smtp] ignoring auto-relay to %s: found in blocklist", address)
+				logger.Log().Debugf("[relay] ignoring auto-relay to %s: found in blocklist", address)
 				continue
 			}
 
@@ -31,9 +33,9 @@ func autoRelayMessage(from string, to []string, data *[]byte) {
 
 	if config.SMTPRelayAll {
 		if err := Relay(from, to, *data); err != nil {
-			logger.Log().Errorf("[smtp] error relaying message: %s", err.Error())
+			logger.Log().Errorf("[relay] error: %s", err.Error())
 		} else {
-			logger.Log().Debugf("[smtp] auto-relay message to %s from %s via %s:%d",
+			logger.Log().Debugf("[relay] sent message to %s from %s via %s:%d",
 				strings.Join(to, ", "), from, config.SMTPRelayConfig.Host, config.SMTPRelayConfig.Port)
 		}
 	} else if config.SMTPRelayMatchingRegexp != nil {
@@ -49,34 +51,62 @@ func autoRelayMessage(from string, to []string, data *[]byte) {
 		}
 
 		if err := Relay(from, filtered, *data); err != nil {
-			logger.Log().Errorf("[smtp] error relaying message: %s", err.Error())
+			logger.Log().Errorf("[relay] error: %s", err.Error())
 		} else {
-			logger.Log().Debugf("[smtp] auto-relay message to %s from %s via %s:%d",
+			logger.Log().Debugf("[relay] auto-relay message to %s from %s via %s:%d",
 				strings.Join(filtered, ", "), from, config.SMTPRelayConfig.Host, config.SMTPRelayConfig.Port)
 		}
 	}
 }
 
+func createRelaySMTPClient(config config.SMTPRelayConfigStruct, addr string) (*smtp.Client, error) {
+	if config.TLS {
+		tlsConf := &tls.Config{ServerName: config.Host} // #nosec
+		tlsConf.InsecureSkipVerify = config.AllowInsecure
+
+		conn, err := tls.Dial("tcp", addr, tlsConf)
+		if err != nil {
+			return nil, fmt.Errorf("TLS dial error: %v", err)
+		}
+
+		client, err := smtp.NewClient(conn, tlsConf.ServerName)
+		if err != nil {
+			_ = conn.Close()
+			return nil, fmt.Errorf("SMTP client error: %v", err)
+		}
+
+		// Note: The caller is responsible for closing the client
+		return client, nil
+	}
+
+	client, err := smtp.Dial(addr)
+	if err != nil {
+		return nil, fmt.Errorf("error connecting to %s: %v", addr, err)
+	}
+
+	if config.STARTTLS {
+		tlsConf := &tls.Config{ServerName: config.Host} // #nosec
+		tlsConf.InsecureSkipVerify = config.AllowInsecure
+
+		if err = client.StartTLS(tlsConf); err != nil {
+			_ = client.Close()
+			return nil, fmt.Errorf("error creating StartTLS config: %v", err)
+		}
+	}
+
+	// Note: The caller is responsible for closing the client
+	return client, nil
+}
+
 // Relay will connect to a pre-configured SMTP server and send a message to one or more recipients.
 func Relay(from string, to []string, msg []byte) error {
 	addr := fmt.Sprintf("%s:%d", config.SMTPRelayConfig.Host, config.SMTPRelayConfig.Port)
 
-	c, err := smtp.Dial(addr)
+	c, err := createRelaySMTPClient(config.SMTPRelayConfig, addr)
 	if err != nil {
-		return fmt.Errorf("error connecting to %s: %s", addr, err.Error())
-	}
-
-	defer c.Close()
-
-	if config.SMTPRelayConfig.STARTTLS {
-		conf := &tls.Config{ServerName: config.SMTPRelayConfig.Host} // #nosec
-
-		conf.InsecureSkipVerify = config.SMTPRelayConfig.AllowInsecure
-
-		if err = c.StartTLS(conf); err != nil {
-			return fmt.Errorf("error creating StartTLS config: %s", err.Error())
-		}
+		return err
 	}
+	defer func() { _ = c.Close() }()
 
 	auth := relayAuthFromConfig()
 
@@ -86,6 +116,15 @@ func Relay(from string, to []string, msg []byte) error {
 		}
 	}
 
+	if config.SMTPRelayConfig.OverrideFrom != "" {
+		msg, err = tools.OverrideFromHeader(msg, config.SMTPRelayConfig.OverrideFrom)
+		if err != nil {
+			return fmt.Errorf("error overriding From header: %s", err.Error())
+		}
+
+		from = config.SMTPRelayConfig.OverrideFrom
+	}
+
 	if err = c.Mail(from); err != nil {
 		return fmt.Errorf("error response to MAIL command: %s", err.Error())
 	}
@@ -154,7 +193,7 @@ func (a *loginAuth) Next(fromServer []byte, more bool) ([]byte, error) {
 		case "Password:":
 			return []byte(a.password), nil
 		default:
-			return nil, errors.New("Unknown fromServer")
+			return nil, errors.New("unknown fromServer")
 		}
 	}
 

internal/smtpd/smtpd.go

@@ -1,7 +1,7 @@
 // Package smtpd implements a basic SMTP server.
 //
 // This is a modified version of https://github.com/mhale/smtpd to
-// add optional support for unix sockets.
+// add support for unix sockets and Mailpit Chaos.
 package smtpd
 
 import (
@@ -22,14 +22,18 @@ import (
 	"sync"
 	"sync/atomic"
 	"time"
+
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
 )
 
 var (
 	// Debug `true` enables verbose logging.
 	Debug      = false
-	rcptToRE   = regexp.MustCompile(`[Tt][Oo]:\s?<(.+)>`)
-	mailFromRE = regexp.MustCompile(`[Ff][Rr][Oo][Mm]:\s?<(.*)>(\s(.*))?`) // Delivery Status Notifications are sent with "MAIL FROM:<>"
-	mailSizeRE = regexp.MustCompile(`[Ss][Ii][Zz][Ee]=(\d+)`)
+	rcptToRE   = regexp.MustCompile(`(?i)TO: ?<([^<>\v]+)>( |$)(.*)?`)
+	mailFromRE = regexp.MustCompile(`(?i)FROM: ?<(|[^<>\v]+)>( |$)(.*)?`) // Delivery Status Notifications are sent with "MAIL FROM:<>"
+
+	// extract mail size from 'MAIL FROM' parameter
+	mailFromSizeRE = regexp.MustCompile(`(?U)(^| |,)[Ss][Ii][Zz][Ee]=(.*)($|,| )`)
 )
 
 // Handler function called upon successful receipt of an email.
@@ -38,7 +42,7 @@ type Handler func(remoteAddr net.Addr, from string, to []string, data []byte) er
 
 // MsgIDHandler function called upon successful receipt of an email. Returns a message ID.
 // Results in a "250 2.0.0 Ok: queued as <message-id>" response.
-type MsgIDHandler func(remoteAddr net.Addr, from string, to []string, data []byte) (string, error)
+type MsgIDHandler func(remoteAddr net.Addr, from string, to []string, data []byte, username *string) (string, error)
 
 // HandlerRcpt function called on RCPT. Return accept status.
 type HandlerRcpt func(remoteAddr net.Addr, from string, to string) bool
@@ -88,26 +92,27 @@ type LogFunc func(remoteIP, verb, line string)
 
 // Server is an SMTP server.
 type Server struct {
-	Addr              string // TCP address to listen on, defaults to ":25" (all addresses, port 25) if empty
-	AppName           string
-	AuthHandler       AuthHandler
-	AuthMechs         map[string]bool // Override list of allowed authentication mechanisms. Currently supported: LOGIN, PLAIN, CRAM-MD5. Enabling LOGIN and PLAIN will reduce RFC 4954 compliance.
-	AuthRequired      bool            // Require authentication for every command except AUTH, EHLO, HELO, NOOP, RSET or QUIT as per RFC 4954. Ignored if AuthHandler is not configured.
-	DisableReverseDNS bool            // Disable reverse DNS lookups, enforces "unknown" hostname
-	Handler           Handler
-	HandlerRcpt       HandlerRcpt
-	Hostname          string
-	LogRead           LogFunc
-	LogWrite          LogFunc
-	MaxSize           int // Maximum message size allowed, in bytes
-	MaxRecipients     int // Maximum number of recipients, defaults to 100.
-	MsgIDHandler      MsgIDHandler
-	Timeout           time.Duration
-	TLSConfig         *tls.Config
-	TLSListener       bool        // Listen for incoming TLS connections only (not recommended as it may reduce compatibility). Ignored if TLS is not configured.
-	TLSRequired       bool        // Require TLS for every command except NOOP, EHLO, STARTTLS, or QUIT as per RFC 3207. Ignored if TLS is not configured.
-	Protocol          string      // Default tcp, supports unix
-	SocketPerm        fs.FileMode // if using Unix socket, socket permissions
+	Addr                     string // TCP address to listen on, defaults to ":25" (all addresses, port 25) if empty
+	AppName                  string
+	AuthHandler              AuthHandler
+	AuthMechs                map[string]bool // Override list of allowed authentication mechanisms. Currently supported: LOGIN, PLAIN, CRAM-MD5. Enabling LOGIN and PLAIN will reduce RFC 4954 compliance.
+	AuthRequired             bool            // Require authentication for every command except AUTH, EHLO, HELO, NOOP, RSET or QUIT as per RFC 4954. Ignored if AuthHandler is not configured.
+	DisableReverseDNS        bool            // Disable reverse DNS lookups, enforces "unknown" hostname
+	Handler                  Handler
+	HandlerRcpt              HandlerRcpt
+	Hostname                 string
+	LogRead                  LogFunc
+	LogWrite                 LogFunc
+	MaxSize                  int // Maximum message size allowed, in bytes
+	MaxRecipients            int // Maximum number of recipients, defaults to 100.
+	MsgIDHandler             MsgIDHandler
+	IgnoreRejectedRecipients bool // Accept emails to rejected recipients with 2xx response but silently drop them
+	Timeout                  time.Duration
+	TLSConfig                *tls.Config
+	TLSListener              bool        // Listen for incoming TLS connections only (not recommended as it may reduce compatibility). Ignored if TLS is not configured.
+	TLSRequired              bool        // Require TLS for every command except NOOP, EHLO, STARTTLS, or QUIT as per RFC 3207. Ignored if TLS is not configured.
+	Protocol                 string      // Default tcp, supports unix
+	SocketPerm               fs.FileMode // if using Unix socket, socket permissions
 
 	inShutdown   int32 // server was closed or shutdown
 	openSessions int32 // count of open sessions
@@ -213,7 +218,7 @@ func (srv *Server) Serve(ln net.Listener) error {
 		return ErrServerClosed
 	}
 
-	defer ln.Close()
+	defer func() { _ = ln.Close() }()
 
 	for {
 		// if we are shutting down, don't accept new connections
@@ -225,7 +230,7 @@ func (srv *Server) Serve(ln net.Listener) error {
 
 		conn, err := ln.Accept()
 		if err != nil {
-			if netErr, ok := err.(net.Error); ok && netErr.Temporary() {
+			if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
 				continue
 			}
 			return err
@@ -251,6 +256,7 @@ type session struct {
 	xClientTrust  bool   // Trust XCLIENT from current IP address
 	tls           bool
 	authenticated bool
+	username      *string // username, nil if not authenticated
 }
 
 // Create new session from connection.
@@ -351,13 +357,21 @@ func (srv *Server) Shutdown(ctx context.Context) error {
 // Function called to handle connection requests.
 func (s *session) serve() {
 	defer atomic.AddInt32(&s.srv.openSessions, -1)
-	defer s.conn.Close()
+	// pass the connection into the defer function to ensure it is closed,
+	// otherwise results in a 5s timeout for each connection
+	defer func(c net.Conn) { _ = c.Close() }(s.conn)
 
 	var from string
 	var gotFrom bool
 	var to []string
+	var hasRejectedRecipients bool
 	var buffer bytes.Buffer
 
+	// RFC 5321 specifies support for minimum of 100 recipients is required.
+	if s.srv.MaxRecipients == 0 {
+		s.srv.MaxRecipients = 100
+	}
+
 	// Send banner.
 	s.writef("220 %s %s ESMTP Service ready", s.srv.Hostname, s.srv.AppName)
 
@@ -385,15 +399,17 @@ loop:
 			from = ""
 			gotFrom = false
 			to = nil
+			hasRejectedRecipients = false
 			buffer.Reset()
 		case "EHLO":
 			s.remoteName = args
-			s.writef(s.makeEHLOResponse())
+			s.writef("%s", s.makeEHLOResponse())
 
 			// RFC 2821 section 4.1.4 specifies that EHLO has the same effect as RSET.
 			from = ""
 			gotFrom = false
 			to = nil
+			hasRejectedRecipients = false
 			buffer.Reset()
 		case "MAIL":
 			if s.srv.TLSConfig != nil && s.srv.TLSRequired && !s.tls {
@@ -409,19 +425,28 @@ loop:
 			if match == nil {
 				s.writef("501 5.5.4 Syntax error in parameters or arguments (invalid FROM parameter)")
 			} else {
+				// Mailpit Chaos
+				if fail, code := chaos.Config.Sender.Trigger(); fail {
+					s.writef("%d Chaos sender error", code)
+					break
+				}
+
 				// Validate the SIZE parameter if one was sent.
 				if len(match[2]) > 0 { // A parameter is present
-					sizeMatch := mailSizeRE.FindStringSubmatch(match[3])
+					sizeMatch := mailFromSizeRE.FindStringSubmatch(match[3])
 					if sizeMatch == nil {
-						s.writef("501 5.5.4 Syntax error in parameters or arguments (invalid SIZE parameter)")
+						// ignore other parameter
+						from = match[1]
+						gotFrom = true
+						s.writef("250 2.1.0 Ok")
 					} else {
 						// Enforce the maximum message size if one is set.
-						size, err := strconv.Atoi(sizeMatch[1])
+						size, err := strconv.Atoi(sizeMatch[2])
 						if err != nil { // Bad SIZE parameter
 							s.writef("501 5.5.4 Syntax error in parameters or arguments (invalid SIZE parameter)")
 						} else if s.srv.MaxSize > 0 && size > s.srv.MaxSize { // SIZE above maximum size, if set
 							err = maxSizeExceeded(s.srv.MaxSize)
-							s.writef(err.Error())
+							s.writef("%s", err.Error())
 						} else { // SIZE ok
 							from = match[1]
 							gotFrom = true
@@ -434,7 +459,9 @@ loop:
 					s.writef("250 2.1.0 Ok")
 				}
 			}
+
 			to = nil
+			hasRejectedRecipients = false
 			buffer.Reset()
 		case "RCPT":
 			if s.srv.TLSConfig != nil && s.srv.TLSRequired && !s.tls {
@@ -454,11 +481,13 @@ loop:
 			if match == nil {
 				s.writef("501 5.5.4 Syntax error in parameters or arguments (invalid TO parameter)")
 			} else {
-				// RFC 5321 specifies support for minimum of 100 recipients is required.
-				if s.srv.MaxRecipients == 0 {
-					s.srv.MaxRecipients = 100
+				// Mailpit Chaos
+				if fail, code := chaos.Config.Recipient.Trigger(); fail {
+					s.writef("%d Chaos recipient error", code)
+					break
 				}
-				if len(to) == s.srv.MaxRecipients {
+
+				if len(to) >= s.srv.MaxRecipients {
 					s.writef("452 4.5.3 Too many recipients")
 				} else {
 					accept := true
@@ -468,6 +497,9 @@ loop:
 					if accept {
 						to = append(to, match[1])
 						s.writef("250 2.1.5 Ok")
+					} else if s.srv.IgnoreRejectedRecipients {
+						hasRejectedRecipients = true
+						s.writef("250 2.1.5 Ok")
 					} else {
 						s.writef("550 5.1.0 Requested action not taken: mailbox unavailable")
 					}
@@ -482,7 +514,8 @@ loop:
 				s.writef("530 5.7.0 Authentication required")
 				break
 			}
-			if !gotFrom || len(to) == 0 {
+			hasRecipients := len(to) > 0 || hasRejectedRecipients
+			if !gotFrom || !hasRecipients {
 				s.writef("503 5.5.1 Bad sequence of commands (MAIL & RCPT required before DATA)")
 				break
 			}
@@ -495,14 +528,14 @@ loop:
 			// On other errors, allow the client to try again.
 			data, err := s.readData()
 			if err != nil {
-				switch err.(type) {
+				switch err := err.(type) {
 				case net.Error:
-					if err.(net.Error).Timeout() {
+					if err.Timeout() {
 						s.writef("421 4.4.2 %s %s ESMTP Service closing transmission channel after timeout exceeded", s.srv.Hostname, s.srv.AppName)
 					}
 					break loop
 				case maxSizeExceededError:
-					s.writef(err.Error())
+					s.writef("%s", err.Error())
 					continue
 				default:
 					s.writef("451 4.3.0 Requested action aborted: local error in processing")
@@ -512,28 +545,30 @@ loop:
 
 			// Create Received header & write message body into buffer.
 			buffer.Reset()
-			buffer.Write(s.makeHeaders(to))
+			if len(to) > 0 {
+				buffer.Write(s.makeHeaders(to))
+			}
 			buffer.Write(data)
 
-			// Pass mail on to handler.
-			if s.srv.Handler != nil {
+			// Pass mail on to handler only if there are valid recipients.
+			if len(to) > 0 && s.srv.Handler != nil {
 				err := s.srv.Handler(s.conn.RemoteAddr(), from, to, buffer.Bytes())
 				if err != nil {
 					checkErrFormat := regexp.MustCompile(`^([2-5][0-9]{2})[\s\-](.+)$`)
 					if checkErrFormat.MatchString(err.Error()) {
-						s.writef(err.Error())
+						s.writef("%s", err.Error())
 					} else {
 						s.writef("451 4.3.5 Unable to process mail")
 					}
 					break
 				}
 				s.writef("250 2.0.0 Ok: queued")
-			} else if s.srv.MsgIDHandler != nil {
-				msgID, err := s.srv.MsgIDHandler(s.conn.RemoteAddr(), from, to, buffer.Bytes())
+			} else if len(to) > 0 && s.srv.MsgIDHandler != nil {
+				msgID, err := s.srv.MsgIDHandler(s.conn.RemoteAddr(), from, to, buffer.Bytes(), s.username)
 				if err != nil {
 					checkErrFormat := regexp.MustCompile(`^([2-5][0-9]{2})[\s\-](.+)$`)
 					if checkErrFormat.MatchString(err.Error()) {
-						s.writef(err.Error())
+						s.writef("%s", err.Error())
 					} else {
 						s.writef("451 4.3.5 Unable to process mail")
 					}
@@ -541,11 +576,18 @@ loop:
 				}
 
 				if msgID != "" {
-					s.writef("250 2.0.0 Ok: queued as " + msgID)
+					s.writef("250 2.0.0 Ok: queued as %s", msgID)
 				} else {
 					s.writef("250 2.0.0 Ok: queued")
 				}
 			} else {
+				if hasRejectedRecipients && Debug {
+					if s.srv.LogWrite != nil {
+						s.srv.LogWrite(s.remoteIP, "DEBUG", "Message from sender silently dropped (rejected recipients)")
+					} else {
+						log.Printf("%s DEBUG Message from sender silently dropped (rejected recipients)", s.remoteIP)
+					}
+				}
 				s.writef("250 2.0.0 Ok: queued")
 			}
 
@@ -553,6 +595,7 @@ loop:
 			from = ""
 			gotFrom = false
 			to = nil
+			hasRejectedRecipients = false
 			buffer.Reset()
 		case "QUIT":
 			s.writef("221 2.0.0 %s %s ESMTP Service closing transmission channel", s.srv.Hostname, s.srv.AppName)
@@ -566,6 +609,7 @@ loop:
 			from = ""
 			gotFrom = false
 			to = nil
+			hasRejectedRecipients = false
 			buffer.Reset()
 		case "NOOP":
 			s.writef("250 2.0.0 Ok")
@@ -642,6 +686,7 @@ loop:
 			from = ""
 			gotFrom = false
 			to = nil
+			hasRejectedRecipients = false
 			buffer.Reset()
 		case "AUTH":
 			if s.srv.TLSConfig != nil && s.srv.TLSRequired && !s.tls {
@@ -680,6 +725,12 @@ loop:
 				break
 			}
 
+			// Mailpit Chaos
+			if fail, code := chaos.Config.Authentication.Trigger(); fail {
+				s.writef("%d Chaos authentication error", code)
+				break
+			}
+
 			// RFC 4954 also specifies that ESMTP code 5.5.4 ("Invalid command arguments") should be returned
 			// when attempting to use an unsupported authentication type.
 			// Many servers return 5.7.4 ("Security features not supported") instead.
@@ -698,7 +749,7 @@ loop:
 					break loop
 				}
 
-				s.writef(err.Error())
+				s.writef("%s", err.Error())
 				break
 			}
 
@@ -721,7 +772,7 @@ func (s *session) writef(format string, args ...interface{}) {
 	}
 
 	line := fmt.Sprintf(format, args...)
-	fmt.Fprintf(s.bw, line+"\r\n")
+	_, _ = fmt.Fprintf(s.bw, "%s\r\n", line)
 	_ = s.bw.Flush()
 
 	if Debug {
@@ -856,7 +907,8 @@ func (s *session) makeEHLOResponse() (response string) {
 		}
 	}
 
-	response += "250 ENHANCEDSTATUSCODES"
+	response += "250-ENHANCEDSTATUSCODES\r\n"
+	response += "250 SMTPUTF8" // last entry must use a space instead of a dash
 	return
 }
 
@@ -864,7 +916,7 @@ func (s *session) handleAuthLogin(arg string) (bool, error) {
 	var err error
 
 	if arg == "" {
-		s.writef("334 " + base64.StdEncoding.EncodeToString([]byte("Username:")))
+		s.writef("334 %s", base64.StdEncoding.EncodeToString([]byte("Username:")))
 		arg, err = s.readLine()
 		if err != nil {
 			return false, err
@@ -876,7 +928,7 @@ func (s *session) handleAuthLogin(arg string) (bool, error) {
 		return false, errors.New("501 5.5.2 Syntax error (unable to decode)")
 	}
 
-	s.writef("334 " + base64.StdEncoding.EncodeToString([]byte("Password:")))
+	s.writef("334 %s", base64.StdEncoding.EncodeToString([]byte("Password:")))
 	line, err := s.readLine()
 	if err != nil {
 		return false, err
@@ -889,6 +941,12 @@ func (s *session) handleAuthLogin(arg string) (bool, error) {
 
 	// Validate credentials.
 	authenticated, err := s.srv.AuthHandler(s.conn.RemoteAddr(), "LOGIN", username, password, nil)
+	if authenticated {
+		uname := string(username)
+		s.username = &uname
+	} else {
+		s.username = nil
+	}
 
 	return authenticated, err
 }
@@ -924,7 +982,7 @@ func (s *session) handleAuthPlain(arg string) (bool, error) {
 func (s *session) handleAuthCramMD5() (bool, error) {
 	shared := "<" + strconv.Itoa(os.Getpid()) + "." + strconv.Itoa(time.Now().Nanosecond()) + "@" + s.srv.Hostname + ">"
 
-	s.writef("334 " + base64.StdEncoding.EncodeToString([]byte(shared)))
+	s.writef("334 %s", base64.StdEncoding.EncodeToString([]byte(shared)))
 
 	data, err := s.readLine()
 	if err != nil {

internal/snakeoil/snakeoil.go

@@ -0,0 +1,196 @@
+// Package snakeoil provides functionality to generate a temporary self-signed certificates
+// for testing purposes. It generates a public and private key pair, stores them in the
+// OS's temporary directory, returning the paths to these files.
+package snakeoil
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/base64"
+	"encoding/pem"
+	"errors"
+	"math/big"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/tools"
+)
+
+var keys = make(map[string]KeyPair)
+
+// KeyPair holds the public and private key paths for a self-signed certificate.
+type KeyPair struct {
+	Public  string
+	Private string
+}
+
+// Certificates returns all configured self-signed certificates in use,
+// used for file deletion on exit.
+func Certificates() map[string]KeyPair {
+	return keys
+}
+
+// Public returns the path to a generated PEM-encoded RSA public key.
+func Public(str string) string {
+	domains, key, err := parse(str)
+	if err != nil {
+		logger.Log().Errorf("[tls] failed to parse domains: %v", err)
+		return ""
+	}
+
+	if pair, ok := keys[key]; ok {
+		return pair.Public
+	}
+
+	private, public, err := generate(domains)
+	if err != nil {
+		logger.Log().Errorf("[tls] failed to generate public certificate: %v", err)
+		return ""
+	}
+
+	keys[key] = KeyPair{
+		Public:  public,
+		Private: private,
+	}
+
+	return public
+}
+
+// Private returns the path to a generated PEM-encoded RSA private key.
+func Private(str string) string {
+	domains, key, err := parse(str)
+	if err != nil {
+		logger.Log().Errorf("[tls] failed to parse domains: %v", err)
+		return ""
+	}
+
+	if pair, ok := keys[key]; ok {
+		return pair.Private
+	}
+
+	private, public, err := generate(domains)
+	if err != nil {
+		logger.Log().Errorf("[tls] failed to generate public certificate: %v", err)
+		return ""
+	}
+
+	keys[key] = KeyPair{
+		Public:  public,
+		Private: private,
+	}
+
+	return private
+}
+
+// Parse takes the original string input, removes the "sans:" prefix,
+// splits the result into individual domains, and returns a slice of unique domains,
+// along with a unique key that is a comma-separated list of these domains.
+func parse(str string) ([]string, string, error) {
+	// remove "sans:" prefix
+	str = str[5:]
+	var domains []string
+	// split the string by commas and trim whitespace
+	for domain := range strings.SplitSeq(str, ",") {
+		domain = strings.ToLower(strings.TrimSpace(domain))
+		if domain != "" && !tools.InArray(domain, domains) {
+			domains = append(domains, domain)
+		}
+	}
+
+	if len(domains) == 0 {
+		return domains, "", errors.New("no valid domains provided")
+	}
+
+	// generate sha256 hash of the domains to create a unique key
+	hasher := sha256.New()
+	hasher.Write([]byte(strings.Join(domains, ",")))
+	key := base64.URLEncoding.EncodeToString(hasher.Sum(nil))
+
+	return domains, key, nil
+}
+
+// Generate a new self-signed certificate and return a public & private key paths.
+func generate(domains []string) (string, string, error) {
+	logger.Log().Infof("[tls] generating temp self-signed certificate for: %s", strings.Join(domains, ","))
+	key, err := rsa.GenerateKey(rand.Reader, 4096)
+	if err != nil {
+		return "", "", err
+	}
+
+	keyBytes := x509.MarshalPKCS1PrivateKey(key)
+	// PEM encoding of private key
+	keyPEM := pem.EncodeToMemory(
+		&pem.Block{
+			Type:  "RSA PRIVATE KEY",
+			Bytes: keyBytes,
+		},
+	)
+
+	notBefore := time.Now()
+	notAfter := notBefore.Add(365 * 24 * time.Hour)
+
+	// create certificate template
+	template := x509.Certificate{
+		SerialNumber: big.NewInt(0),
+		Subject: pkix.Name{
+			CommonName:   domains[0],
+			Organization: []string{"Mailpit self-signed certificate"},
+		},
+		DNSNames:              domains,
+		SignatureAlgorithm:    x509.SHA256WithRSA,
+		NotBefore:             notBefore,
+		NotAfter:              notAfter,
+		BasicConstraintsValid: true,
+		KeyUsage:              x509.KeyUsageDigitalSignature | x509.KeyUsageKeyAgreement | x509.KeyUsageKeyEncipherment | x509.KeyUsageDataEncipherment,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},
+	}
+
+	// create certificate using template
+	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &key.PublicKey, key)
+	if err != nil {
+		return "", "", err
+
+	}
+
+	// PEM encoding of certificate
+	certPem := pem.EncodeToMemory(
+		&pem.Block{
+			Type:  "CERTIFICATE",
+			Bytes: derBytes,
+		},
+	)
+
+	// Store the paths to the generated keys
+	priv, err := os.CreateTemp("", ".mailpit-*-private.pem")
+	if err != nil {
+		return "", "", err
+	}
+
+	if _, err := priv.Write(keyPEM); err != nil {
+		return "", "", err
+	}
+
+	if err := priv.Close(); err != nil {
+		return "", "", err
+	}
+
+	pub, err := os.CreateTemp("", ".mailpit-*-public.pem")
+	if err != nil {
+		return "", "", err
+	}
+
+	if _, err := pub.Write(certPem); err != nil {
+		return "", "", err
+	}
+
+	if err := pub.Close(); err != nil {
+		return "", "", err
+	}
+
+	return priv.Name(), pub.Name(), nil
+}

internal/spamassassin/postmark/postmark.go

@@ -59,7 +59,7 @@ func Check(email []byte, timeout int) (Response, error) {
 		return r, err
 	}
 
-	defer resp.Body.Close()
+	defer func() { _ = resp.Body.Close() }()
 
 	err = json.NewDecoder(resp.Body).Decode(&r)
 

internal/spamassassin/spamassassin.go

@@ -57,13 +57,6 @@ func SetService(s string) {
 	}
 }
 
-// SetTimeout defines the timeout
-func SetTimeout(t int) {
-	if t > 0 {
-		timeout = t
-	}
-}
-
 // Ping returns whether a service is active or not
 func Ping() error {
 	if service == "postmark" {

internal/spamassassin/spamc/spamc.go

@@ -70,21 +70,22 @@ type Result struct {
 
 // dial connects to spamd through TCP or a Unix socket.
 func (c *Client) dial() (connection, error) {
-	if c.net == "tcp" {
+	switch c.net {
+	case "tcp":
 		tcpAddr, err := net.ResolveTCPAddr("tcp", c.addr)
 		if err != nil {
 			return nil, err
 		}
 		return net.DialTCP("tcp", nil, tcpAddr)
-	} else if c.net == "unix" {
+	case "unix":
 		unixAddr, err := net.ResolveUnixAddr("unix", c.addr)
 		if err != nil {
 			return nil, err
 		}
 		return net.DialUnix("unix", nil, unixAddr)
+	default:
+		return nil, fmt.Errorf("unsupported network type: %s", c.net)
 	}
-
-	panic("Client.net must be either \"tcp\" or \"unix\"")
 }
 
 // Report checks if message is spam or not, and returns score plus report
@@ -103,7 +104,7 @@ func (c *Client) report(email []byte) ([]string, error) {
 		return nil, err
 	}
 
-	defer conn.Close()
+	defer func() { _ = conn.Close() }()
 
 	if err := conn.SetDeadline(time.Now().Add(time.Duration(c.timeout) * time.Second)); err != nil {
 		return nil, err
@@ -221,7 +222,7 @@ func (c *Client) Ping() error {
 	if err != nil {
 		return err
 	}
-	defer conn.Close()
+	defer func() { _ = conn.Close() }()
 
 	if err := conn.SetDeadline(time.Now().Add(time.Duration(c.timeout) * time.Second)); err != nil {
 		return err

internal/stats/stats.go

@@ -7,23 +7,36 @@ import (
 	"time"
 
 	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/logger"
 	"github.com/axllent/mailpit/internal/storage"
-	"github.com/axllent/mailpit/internal/updater"
+	"github.com/axllent/mailpit/internal/tools"
 )
 
+// Stores cached version  along with its expiry time and error count.
+// Used to minimize repeated version lookups and track consecutive errors.
+type versionCache struct {
+	// github version string
+	value string
+	// time to expire the cache
+	expiry time.Time
+	// count of consecutive errors
+	errCount int
+}
+
 var (
-	// to prevent hammering Github for latest version
-	latestVersionCache string
+	// Version cache storing the latest GitHub version
+	vCache versionCache
 
 	// StartedAt is set to the current ime when Mailpit starts
 	startedAt time.Time
 
+	// sync mutex to prevent race condition with simultaneous requests
 	mu sync.RWMutex
 
-	smtpAccepted     float64
-	smtpAcceptedSize float64
-	smtpRejected     float64
-	smtpIgnored      float64
+	smtpAccepted     uint64
+	smtpAcceptedSize uint64
+	smtpRejected     uint64
+	smtpIgnored      uint64
 )
 
 // AppInformation struct
@@ -36,34 +49,40 @@ type AppInformation struct {
 	// Database path
 	Database string
 	// Database size in bytes
-	DatabaseSize float64
+	DatabaseSize uint64
 	// Total number of messages in the database
-	Messages float64
+	Messages uint64
 	// Total number of messages in the database
-	Unread float64
+	Unread uint64
 	// Tags and message totals per tag
 	Tags map[string]int64
 	// Runtime statistics
 	RuntimeStats struct {
 		// Mailpit server uptime in seconds
-		Uptime float64
+		Uptime uint64
 		// Current memory usage in bytes
 		Memory uint64
 		// Database runtime messages deleted
-		MessagesDeleted float64
+		MessagesDeleted uint64
 		// Accepted runtime SMTP messages
-		SMTPAccepted float64
+		SMTPAccepted uint64
 		// Total runtime accepted messages size in bytes
-		SMTPAcceptedSize float64
+		SMTPAcceptedSize uint64
 		// Rejected runtime SMTP messages
-		SMTPRejected float64
+		SMTPRejected uint64
 		// Ignored runtime SMTP messages (when using --ignore-duplicate-ids)
-		SMTPIgnored float64
+		SMTPIgnored uint64
 	}
 }
 
+// Calculates exponential backoff duration based on the error count.
+func getBackoff(errCount int) time.Duration {
+	backoff := min(time.Duration(1<<errCount)*time.Minute, 30*time.Minute)
+	return backoff
+}
+
 // Load the current statistics
-func Load() AppInformation {
+func Load(detectLatestVersion bool) AppInformation {
 	info := AppInformation{}
 	info.Version = config.Version
 
@@ -71,26 +90,42 @@ func Load() AppInformation {
 	runtime.ReadMemStats(&m)
 
 	info.RuntimeStats.Memory = m.Sys - m.HeapReleased
-	info.RuntimeStats.Uptime = time.Since(startedAt).Seconds()
+	info.RuntimeStats.Uptime = uint64(time.Since(startedAt).Seconds())
 	info.RuntimeStats.MessagesDeleted = storage.StatsDeleted
 	info.RuntimeStats.SMTPAccepted = smtpAccepted
 	info.RuntimeStats.SMTPAcceptedSize = smtpAcceptedSize
 	info.RuntimeStats.SMTPRejected = smtpRejected
 	info.RuntimeStats.SMTPIgnored = smtpIgnored
 
-	if latestVersionCache != "" {
-		info.LatestVersion = latestVersionCache
-	} else {
-		latest, _, _, err := updater.GithubLatest(config.Repo, config.RepoBinaryName)
-		if err == nil {
-			info.LatestVersion = latest
-			latestVersionCache = latest
+	if config.DisableVersionCheck {
+		info.LatestVersion = "disabled"
+	} else if detectLatestVersion {
+		mu.RLock()
+		cacheValid := time.Now().Before(vCache.expiry)
+		cacheValue := vCache.value
+		mu.RUnlock()
 
-			// clear latest version cache after 5 minutes
-			go func() {
-				time.Sleep(5 * time.Minute)
-				latestVersionCache = ""
-			}()
+		if cacheValid {
+			info.LatestVersion = cacheValue
+		} else {
+			mu.Lock()
+			// Re-check after acquiring write lock in case another goroutine refreshed it
+			if time.Now().Before(vCache.expiry) {
+				info.LatestVersion = vCache.value
+			} else {
+				latest, err := config.GHRUConfig.Latest()
+				if err == nil {
+					vCache = versionCache{value: latest.Tag, expiry: time.Now().Add(15 * time.Minute)}
+					info.LatestVersion = latest.Tag
+				} else {
+					logger.Log().Errorf("Failed to fetch latest version: %v", err)
+					vCache.errCount++
+					vCache.value = ""
+					vCache.expiry = time.Now().Add(getBackoff(vCache.errCount))
+					info.LatestVersion = ""
+				}
+			}
+			mu.Unlock()
 		}
 	}
 
@@ -112,7 +147,7 @@ func Track() {
 func LogSMTPAccepted(size int) {
 	mu.Lock()
 	smtpAccepted = smtpAccepted + 1
-	smtpAcceptedSize = smtpAcceptedSize + float64(size)
+	smtpAcceptedSize = smtpAcceptedSize + tools.SafeUint64(size)
 	mu.Unlock()
 }
 

internal/storage/cron.go

@@ -32,7 +32,7 @@ func dbCron() {
 				if total == 0 {
 					deletedPercent = 100
 				} else {
-					deletedPercent = deletedSize * 100 / total
+					deletedPercent = float64(deletedSize * 100 / total)
 				}
 				// only vacuum the DB if at least 1% of mail storage size has been deleted
 				if deletedPercent >= 1 {
@@ -56,24 +56,23 @@ func pruneMessages() {
 	start := time.Now()
 
 	ids := []string{}
-	var prunedSize int64
-	var size float64
+	var prunedSize uint64
+	var size float64 // use float64 for rqlite compatibility
 
 	// prune using `--max` if set
-	if config.MaxMessages > 0 {
-		total := CountTotal()
-		if total > float64(config.MaxAgeInHours) {
-			offset := config.MaxMessages
-			if config.DemoMode {
-				offset = 500
-			}
-			q := sqlf.Select("ID, Size").
-				From(tenant("mailbox")).
-				OrderBy("Created DESC").
-				Limit(5000).
-				Offset(offset)
+	if config.MaxMessages > 0 && CountTotal() > uint64(config.MaxMessages) {
+		offset := config.MaxMessages
+		if config.DemoMode {
+			offset = 500
+		}
+		q := sqlf.Select("ID, Size").
+			From(tenant("mailbox")).
+			OrderBy("Created DESC").
+			Limit(5000).
+			Offset(offset)
 
-			if err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		if err := q.QueryAndClose(
+			context.TODO(), db, func(row *sql.Rows) {
 				var id string
 
 				if err := row.Scan(&id, &size); err != nil {
@@ -81,12 +80,12 @@ func pruneMessages() {
 					return
 				}
 				ids = append(ids, id)
-				prunedSize = prunedSize + int64(size)
+				prunedSize = prunedSize + uint64(size)
 
-			}); err != nil {
-				logger.Log().Errorf("[db] %s", err.Error())
-				return
-			}
+			},
+		); err != nil {
+			logger.Log().Errorf("[db] %s", err.Error())
+			return
 		}
 	}
 
@@ -110,7 +109,7 @@ func pruneMessages() {
 
 			if !tools.InArray(id, ids) {
 				ids = append(ids, id)
-				prunedSize = prunedSize + int64(size)
+				prunedSize = prunedSize + uint64(size)
 			}
 
 		}); err != nil {

internal/storage/database.go

@@ -27,12 +27,11 @@ import (
 
 var (
 	db           *sql.DB
-	dbFile       string
 	sqlDriver    string
 	dbLastAction time.Time
 
 	// zstd compression encoder & decoder
-	dbEncoder, _ = zstd.NewWriter(nil)
+	dbEncoder    *zstd.Encoder
 	dbDecoder, _ = zstd.NewReader(nil)
 
 	temporaryFiles = []string{}
@@ -40,11 +39,31 @@ var (
 
 // InitDB will initialise the database
 func InitDB() error {
+	// dbEncoder
 	var (
 		dsn string
 		err error
 	)
 
+	if config.Compression > 0 {
+		var compression zstd.EncoderLevel
+		switch config.Compression {
+		case 1:
+			compression = zstd.SpeedFastest
+		case 2:
+			compression = zstd.SpeedDefault
+		case 3:
+			compression = zstd.SpeedBestCompression
+		}
+		dbEncoder, err = zstd.NewWriter(nil, zstd.WithEncoderLevel(compression))
+		if err != nil {
+			return err
+		}
+		logger.Log().Debugf("[db] storing messages with compression: %s", compression.String())
+	} else {
+		logger.Log().Debug("[db] storing messages with no compression")
+	}
+
 	p := config.Database
 
 	if p == "" {
@@ -100,8 +119,13 @@ func InitDB() error {
 	db.SetMaxOpenConns(1)
 
 	if sqlDriver == "sqlite" {
-		// SQLite performance tuning (https://phiresky.github.io/blog/2020/sqlite-performance-tuning/)
-		_, err = db.Exec("PRAGMA journal_mode = WAL; PRAGMA synchronous = normal;")
+		if config.DisableWAL {
+			// disable WAL mode for SQLite, allows NFS mounted DBs
+			_, err = db.Exec("PRAGMA journal_mode=DELETE; PRAGMA synchronous=NORMAL;")
+		} else {
+			// SQLite performance tuning (https://phiresky.github.io/blog/2020/sqlite-performance-tuning/)
+			_, err = db.Exec("PRAGMA journal_mode=WAL; PRAGMA synchronous=NORMAL;")
+		}
 		if err != nil {
 			return err
 		}
@@ -114,7 +138,6 @@ func InitDB() error {
 
 	LoadTagFilters()
 
-	dbFile = p
 	dbLastAction = time.Now()
 
 	sigs := make(chan os.Signal, 1)
@@ -185,65 +208,51 @@ func StatsGet() MailboxStats {
 }
 
 // CountTotal returns the number of emails in the database
-func CountTotal() float64 {
-	var total float64
+func CountTotal() uint64 {
+	var total float64 // use float64 for rqlite compatibility
 
 	_ = sqlf.From(tenant("mailbox")).
 		Select("COUNT(*)").To(&total).
 		QueryRowAndClose(context.TODO(), db)
 
-	return total
+	return uint64(total)
 }
 
 // CountUnread returns the number of emails in the database that are unread.
-func CountUnread() float64 {
-	var total float64
+func CountUnread() uint64 {
+	var total float64 // use float64 for rqlite compatibility
 
 	_ = sqlf.From(tenant("mailbox")).
 		Select("COUNT(*)").To(&total).
 		Where("Read = ?", 0).
 		QueryRowAndClose(context.TODO(), db)
 
-	return total
+	return uint64(total)
 }
 
 // CountRead returns the number of emails in the database that are read.
-func CountRead() float64 {
-	var total float64
+func CountRead() uint64 {
+	var total float64 // use float64 for rqlite compatibility
 
 	_ = sqlf.From(tenant("mailbox")).
 		Select("COUNT(*)").To(&total).
 		Where("Read = ?", 1).
 		QueryRowAndClose(context.TODO(), db)
 
-	return total
+	return uint64(total)
 }
 
 // DbSize returns the size of the SQLite database.
-func DbSize() float64 {
-	var total sql.NullFloat64
+func DbSize() uint64 {
+	var total sql.NullFloat64 // use float64 for rqlite compatibility
 
 	err := db.QueryRow("SELECT page_count * page_size AS size FROM pragma_page_count(), pragma_page_size()").Scan(&total)
 
 	if err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
-		return total.Float64
 	}
 
-	return total.Float64
-}
-
-// IsUnread returns whether a message is unread or not.
-func IsUnread(id string) bool {
-	var unread int
-
-	_ = sqlf.From(tenant("mailbox")).
-		Select("COUNT(*)").To(&unread).
-		Where("Read = ?", 0).
-		Where("ID = ?", id).
-		QueryRowAndClose(context.TODO(), db)
-
-	return unread == 1
+	return uint64(total.Float64)
 }
 
 // MessageIDExists checks whether a Message-ID exists in the DB

internal/storage/functions_test.go

@@ -59,11 +59,11 @@ func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
 
 func assertEqualStats(t *testing.T, total int, unread int) {
 	s := StatsGet()
-	if float64(total) != s.Total {
+	if uint64(total) != s.Total {
 		t.Fatalf("Incorrect total mailbox stats: \"%v\" != \"%v\"", total, s.Total)
 	}
 
-	if float64(unread) != s.Unread {
+	if uint64(unread) != s.Unread {
 		t.Fatalf("Incorrect unread mailbox stats: \"%v\" != \"%v\"", unread, s.Unread)
 	}
 }

internal/storage/messages.go

@@ -19,14 +19,15 @@ import (
 	"github.com/axllent/mailpit/internal/tools"
 	"github.com/axllent/mailpit/server/webhook"
 	"github.com/axllent/mailpit/server/websockets"
-	"github.com/jhillyerd/enmime"
+	"github.com/jhillyerd/enmime/v2"
 	"github.com/leporo/sqlf"
 	"github.com/lithammer/shortuuid/v4"
 )
 
 // Store will save an email to the database tables.
+// The username is the authentication username of either the SMTP or HTTP client (blank for none).
 // Returns the database ID of the saved message.
-func Store(body *[]byte) (string, error) {
+func Store(body *[]byte, username *string) (string, error) {
 	parser := enmime.NewParser(enmime.DisableCharacterDetection(true))
 
 	// Parse message body with enmime
@@ -44,13 +45,16 @@ func Store(body *[]byte) (string, error) {
 		from = &mail.Address{Name: env.GetHeader("From")}
 	}
 
-	obj := DBMailSummary{
+	obj := Metadata{
 		From:    from,
 		To:      addressToSlice(env, "To"),
 		Cc:      addressToSlice(env, "Cc"),
 		Bcc:     addressToSlice(env, "Bcc"),
 		ReplyTo: addressToSlice(env, "Reply-To"),
 	}
+	if username != nil {
+		obj.Username = *username
+	}
 
 	messageID := strings.Trim(env.GetHeader("Message-ID"), "<>")
 	created := time.Now()
@@ -82,17 +86,17 @@ func Store(body *[]byte) (string, error) {
 	}
 
 	// roll back if it fails
-	defer tx.Rollback()
+	defer func() { _ = tx.Rollback() }()
 
 	subject := env.GetHeader("Subject")
-	size := float64(len(*body))
+	size := uint64(len(*body))
 	inline := len(env.Inlines)
 	attachments := len(env.Attachments)
 	snippet := tools.CreateSnippet(env.Text, env.HTML)
 
 	sql := fmt.Sprintf(`INSERT INTO %s 
-		(Created, ID, MessageID, Subject, Metadata, Size, Inline, Attachments, SearchText, Read, Snippet) 
-		VALUES(?,?,?,?,?,?,?,?,?,0,?)`,
+    	(Created, ID, MessageID, Subject, Metadata, Size, Inline, Attachments, SearchText, Read, Snippet) 
+	    VALUES(?,?,?,?,?,?,?,?,?,0,?)`,
 		tenant("mailbox"),
 	) // #nosec
 
@@ -102,10 +106,23 @@ func Store(body *[]byte) (string, error) {
 		return "", err
 	}
 
-	// insert compressed raw message
-	encoded := dbEncoder.EncodeAll(*body, make([]byte, 0, int(size)))
-	hexStr := hex.EncodeToString(encoded)
-	_, err = tx.Exec(fmt.Sprintf(`INSERT INTO %s (ID, Email) VALUES(?, x'%s')`, tenant("mailbox_data"), hexStr), id) // #nosec
+	if config.Compression > 0 {
+		// insert compressed raw message
+		compressed := dbEncoder.EncodeAll(*body, make([]byte, 0, size))
+
+		if sqlDriver == "rqlite" {
+			// rqlite does not support binary data in query, so we need to encode the compressed message into hexadecimal
+			// string and then generate the SQL query, which is more memory intensive, especially with large messages
+			hexStr := hex.EncodeToString(compressed)
+			_, err = tx.Exec(fmt.Sprintf(`INSERT INTO %s (ID, Email, Compressed) VALUES(?, x'%s', 1)`, tenant("mailbox_data"), hexStr), id) // #nosec
+		} else {
+			_, err = tx.Exec(fmt.Sprintf(`INSERT INTO %s (ID, Email, Compressed) VALUES(?, ?, 1)`, tenant("mailbox_data")), id, compressed) // #nosec
+		}
+	} else {
+		// insert uncompressed raw message
+		_, err = tx.Exec(fmt.Sprintf(`INSERT INTO %s (ID, Email, Compressed) VALUES(?, ?, 0)`, tenant("mailbox_data")), id, string(*body)) // #nosec
+	}
+
 	if err != nil {
 		return "", err
 	}
@@ -130,6 +147,11 @@ func Store(body *[]byte) (string, error) {
 		tags = append(tags, obj.tagsFromPlusAddresses()...)
 	}
 
+	// auto-tag by username if enabled
+	if config.TagsUsername && username != nil && *username != "" {
+		tags = append(tags, *username)
+	}
+
 	// extract tags from search matches, and sort and extract unique tags
 	tags = sortedUniqueTags(append(tags, tagFilterMatches(id)...))
 
@@ -146,6 +168,24 @@ func Store(body *[]byte) (string, error) {
 		return "", err
 	}
 
+	// we do not want to to broadcast null values for MetaData else this does not align
+	// with the message summary documented in the API docs, so we set them to empty slices.
+	if c.From == nil {
+		c.From = &mail.Address{}
+	}
+	if c.To == nil {
+		c.To = []*mail.Address{}
+	}
+	if c.Cc == nil {
+		c.Cc = []*mail.Address{}
+	}
+	if c.Bcc == nil {
+		c.Bcc = []*mail.Address{}
+	}
+	if c.ReplyTo == nil {
+		c.ReplyTo = []*mail.Address{}
+	}
+
 	c.Created = created
 	c.ID = id
 	c.MessageID = messageID
@@ -162,7 +202,7 @@ func Store(body *[]byte) (string, error) {
 
 	BroadcastMailboxStats()
 
-	logger.Log().Debugf("[db] saved message %s (%d bytes)", id, int64(size))
+	logger.Log().Debugf("[db] saved message %s (%d bytes)", id, size)
 
 	return id, nil
 }
@@ -175,41 +215,52 @@ func List(start int, beforeTS int64, limit int) ([]MessageSummary, error) {
 
 	q := sqlf.From(tenant("mailbox") + " m").
 		Select(`m.Created, m.ID, m.MessageID, m.Subject, m.Metadata, m.Size, m.Attachments, m.Read, m.Snippet`).
-		OrderBy("m.Created DESC").
-		Limit(limit).
-		Offset(start)
+		OrderBy("m.Created DESC")
+
+	if limit > 0 {
+		q = q.Limit(limit).Offset(start)
+	}
 
 	if beforeTS > 0 {
 		q = q.Where("Created < ?", beforeTS)
 	}
 
 	if err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
-		var created float64
+		var created float64 // use float64 for rqlite compatibility
 		var id string
 		var messageID string
 		var subject string
-		var metadata string
-		var size float64
+		var metadataJSON string
+		var size float64 // use float64 for rqlite compatibility
 		var attachments int
 		var read int
 		var snippet string
 		em := MessageSummary{}
+		var meta Metadata
 
-		if err := row.Scan(&created, &id, &messageID, &subject, &metadata, &size, &attachments, &read, &snippet); err != nil {
+		err := row.Scan(&created, &id, &messageID, &subject, &metadataJSON, &size, &attachments, &read, &snippet)
+		if err != nil {
 			logger.Log().Errorf("[db] %s", err.Error())
 			return
 		}
 
-		if err := json.Unmarshal([]byte(metadata), &em); err != nil {
+		if err := json.Unmarshal([]byte(metadataJSON), &meta); err != nil {
 			logger.Log().Errorf("[json] %s", err.Error())
 			return
 		}
 
+		em.From = meta.From
+		em.To = meta.To
+		em.Cc = meta.Cc
+		em.Bcc = meta.Bcc
+		em.ReplyTo = meta.ReplyTo
+		em.Username = meta.Username
+
 		em.Created = time.UnixMilli(int64(created))
 		em.ID = id
 		em.MessageID = messageID
 		em.Subject = subject
-		em.Size = size
+		em.Size = uint64(size)
 		em.Attachments = attachments
 		em.Read = read == 1
 		em.Snippet = snippet
@@ -254,12 +305,20 @@ func GetMessage(id string) (*Message, error) {
 		return nil, err
 	}
 
-	var from *mail.Address
-	fromData := addressToSlice(env, "From")
-	if len(fromData) > 0 {
-		from = fromData[0]
-	} else if env.GetHeader("From") != "" {
-		from = &mail.Address{Name: env.GetHeader("From")}
+	// Load metadata from DB
+	meta, err := GetMetadata(id)
+	if err != nil {
+		meta = Metadata{}
+	}
+
+	from := meta.From
+	if from == nil {
+		fromData := addressToSlice(env, "From")
+		if len(fromData) > 0 {
+			from = fromData[0]
+		} else if env.GetHeader("From") != "" {
+			from = &mail.Address{Name: env.GetHeader("From")}
+		}
 	}
 
 	messageID := strings.Trim(env.GetHeader("Message-ID"), "<>")
@@ -277,7 +336,7 @@ func GetMessage(id string) (*Message, error) {
 			Where(`ID = ?`, id)
 
 		if err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
-			var created float64
+			var created float64 // use float64 for rqlite compatibility
 
 			if err := row.Scan(&created); err != nil {
 				logger.Log().Errorf("[db] %s", err.Error())
@@ -285,7 +344,6 @@ func GetMessage(id string) (*Message, error) {
 			}
 
 			logger.Log().Debugf("[db] %s does not contain a date header, using received datetime", id)
-
 			date = time.UnixMilli(int64(created))
 		}); err != nil {
 			logger.Log().Errorf("[db] %s", err.Error())
@@ -304,10 +362,10 @@ func GetMessage(id string) (*Message, error) {
 		ReturnPath: returnPath,
 		Subject:    env.GetHeader("Subject"),
 		Tags:       getMessageTags(id),
-		Size:       float64(len(raw)),
+		Size:       uint64(len(raw)),
 		Text:       env.Text,
+		Username:   meta.Username,
 	}
-
 	obj.HTML = env.HTML
 	obj.Inline = []Attachment{}
 	obj.Attachments = []Attachment{}
@@ -345,7 +403,7 @@ func GetMessage(id string) (*Message, error) {
 	}
 
 	// mark message as read
-	if err := MarkRead(id); err != nil {
+	if err := MarkRead([]string{id}); err != nil {
 		return &obj, err
 	}
 
@@ -356,11 +414,12 @@ func GetMessage(id string) (*Message, error) {
 
 // GetMessageRaw returns an []byte of the full message
 func GetMessageRaw(id string) ([]byte, error) {
-	var i string
-	var msg string
+	var i, msg string
+	var compressed int
 	q := sqlf.From(tenant("mailbox_data")).
 		Select(`ID`).To(&i).
 		Select(`Email`).To(&msg).
+		Select(`Compressed`).To(&compressed).
 		Where(`ID = ?`, id)
 	err := q.QueryRowAndClose(context.Background(), db)
 	if err != nil {
@@ -372,7 +431,7 @@ func GetMessageRaw(id string) ([]byte, error) {
 	}
 
 	var data []byte
-	if sqlDriver == "rqlite" {
+	if sqlDriver == "rqlite" && compressed == 1 {
 		data, err = base64.StdEncoding.DecodeString(msg)
 		if err != nil {
 			return nil, fmt.Errorf("error decoding base64 message: %w", err)
@@ -381,14 +440,18 @@ func GetMessageRaw(id string) ([]byte, error) {
 		data = []byte(msg)
 	}
 
-	raw, err := dbDecoder.DecodeAll(data, nil)
-	if err != nil {
-		return nil, fmt.Errorf("error decompressing message: %s", err.Error())
-	}
-
 	dbLastAction = time.Now()
 
-	return raw, err
+	if compressed == 1 {
+		raw, err := dbDecoder.DecodeAll(data, nil)
+		if err != nil {
+			return nil, fmt.Errorf("error decompressing message: %s", err.Error())
+		}
+
+		return raw, err
+	}
+
+	return data, nil
 }
 
 // GetAttachmentPart returns an *enmime.Part (attachment or inline) from a message
@@ -440,7 +503,7 @@ func AttachmentSummary(a *enmime.Part) Attachment {
 	}
 	o.ContentType = a.ContentType
 	o.ContentID = a.ContentID
-	o.Size = float64(len(a.Content))
+	o.Size = uint64(len(a.Content))
 
 	return o
 }
@@ -473,30 +536,28 @@ func LatestID(r *http.Request) (string, error) {
 }
 
 // MarkRead will mark a message as read
-func MarkRead(id string) error {
-	if !IsUnread(id) {
-		return nil
-	}
+func MarkRead(ids []string) error {
+	for _, id := range ids {
+		_, err := sqlf.Update(tenant("mailbox")).
+			Set("Read", 1).
+			Where("ID = ?", id).
+			ExecAndClose(context.Background(), db)
 
-	_, err := sqlf.Update(tenant("mailbox")).
-		Set("Read", 1).
-		Where("ID = ?", id).
-		ExecAndClose(context.Background(), db)
+		if err == nil {
+			logger.Log().Debugf("[db] marked message %s as read", id)
+		}
 
-	if err == nil {
-		logger.Log().Debugf("[db] marked message %s as read", id)
+		d := struct {
+			ID   string
+			Read bool
+		}{ID: id, Read: true}
+
+		websockets.Broadcast("update", d)
 	}
 
 	BroadcastMailboxStats()
 
-	d := struct {
-		ID   string
-		Read bool
-	}{ID: id, Read: true}
-
-	websockets.Broadcast("update", d)
-
-	return err
+	return nil
 }
 
 // MarkAllRead will mark all messages as read
@@ -550,32 +611,30 @@ func MarkAllUnread() error {
 }
 
 // MarkUnread will mark a message as unread
-func MarkUnread(id string) error {
-	if IsUnread(id) {
-		return nil
+func MarkUnread(ids []string) error {
+	for _, id := range ids {
+		_, err := sqlf.Update(tenant("mailbox")).
+			Set("Read", 0).
+			Where("ID = ?", id).
+			ExecAndClose(context.Background(), db)
+
+		if err == nil {
+			logger.Log().Debugf("[db] marked message %s as unread", id)
+		}
+
+		dbLastAction = time.Now()
+
+		d := struct {
+			ID   string
+			Read bool
+		}{ID: id, Read: false}
+
+		websockets.Broadcast("update", d)
 	}
 
-	_, err := sqlf.Update(tenant("mailbox")).
-		Set("Read", 0).
-		Where("ID = ?", id).
-		ExecAndClose(context.Background(), db)
-
-	if err == nil {
-		logger.Log().Debugf("[db] marked message %s as unread", id)
-	}
-
-	dbLastAction = time.Now()
-
 	BroadcastMailboxStats()
 
-	d := struct {
-		ID   string
-		Read bool
-	}{ID: id, Read: false}
-
-	websockets.Broadcast("update", d)
-
-	return err
+	return nil
 }
 
 // DeleteMessages deletes one or more messages in bulk
@@ -596,19 +655,21 @@ func DeleteMessages(ids []string) error {
 	if err != nil {
 		return err
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	toDelete := []string{}
-	var totalSize float64
+	var totalSize uint64
 
 	for rows.Next() {
 		var id string
-		var size float64
+		var size float64 // use float64 for rqlite compatibility
+
 		if err := rows.Scan(&id, &size); err != nil {
 			return err
 		}
+
 		toDelete = append(toDelete, id)
-		totalSize = totalSize + size
+		totalSize = totalSize + uint64(size)
 	}
 
 	if err = rows.Err(); err != nil {
@@ -645,7 +706,7 @@ func DeleteMessages(ids []string) error {
 	}
 
 	dbLastAction = time.Now()
-	addDeletedSize(int64(totalSize))
+	addDeletedSize(totalSize)
 
 	logMessagesDeleted(len(toDelete))
 
@@ -693,7 +754,7 @@ func DeleteAllMessages() error {
 	}
 
 	// roll back if it fails
-	defer tx.Rollback()
+	defer func() { _ = tx.Rollback() }()
 
 	tables := []string{"mailbox", "mailbox_data", "tags", "message_tags"}
 
@@ -727,3 +788,17 @@ func DeleteAllMessages() error {
 
 	return err
 }
+
+// GetMetadata retrieves the metadata for a message by its ID
+func GetMetadata(id string) (Metadata, error) {
+	var metadataJSON string
+	row := db.QueryRow(fmt.Sprintf("SELECT Metadata FROM %s WHERE ID = ?", tenant("mailbox")), id)
+	if err := row.Scan(&metadataJSON); err != nil {
+		return Metadata{}, err
+	}
+	var meta Metadata
+	if err := json.Unmarshal([]byte(metadataJSON), &meta); err != nil {
+		return Metadata{}, err
+	}
+	return meta, nil
+}

internal/storage/messages_test.go

@@ -16,13 +16,13 @@ func TestTextEmailInserts(t *testing.T) {
 	start := time.Now()
 
 	for i := 0; i < testRuns; i++ {
-		if _, err := Store(&testTextEmail); err != nil {
+		if _, err := Store(&testTextEmail, nil); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
 	}
 
-	assertEqual(t, CountTotal(), float64(testRuns), "Incorrect number of text emails stored")
+	assertEqual(t, CountTotal(), uint64(testRuns), "Incorrect number of text emails stored")
 
 	t.Logf("Inserted %d text emails in %s", testRuns, time.Since(start))
 
@@ -32,7 +32,7 @@ func TestTextEmailInserts(t *testing.T) {
 		t.Fail()
 	}
 
-	assertEqual(t, CountTotal(), float64(0), "incorrect number of text emails deleted")
+	assertEqual(t, CountTotal(), uint64(0), "incorrect number of text emails deleted")
 
 	t.Logf("deleted %d text emails in %s", testRuns, time.Since(delStart))
 
@@ -54,13 +54,13 @@ func TestMimeEmailInserts(t *testing.T) {
 		start := time.Now()
 
 		for i := 0; i < testRuns; i++ {
-			if _, err := Store(&testMimeEmail); err != nil {
+			if _, err := Store(&testMimeEmail, nil); err != nil {
 				t.Log("error ", err)
 				t.Fail()
 			}
 		}
 
-		assertEqual(t, CountTotal(), float64(testRuns), "Incorrect number of mime emails stored")
+		assertEqual(t, CountTotal(), uint64(testRuns), "Incorrect number of mime emails stored")
 
 		t.Logf("Inserted %d text emails in %s", testRuns, time.Since(start))
 
@@ -70,7 +70,7 @@ func TestMimeEmailInserts(t *testing.T) {
 			t.Fail()
 		}
 
-		assertEqual(t, CountTotal(), float64(0), "incorrect number of mime emails deleted")
+		assertEqual(t, CountTotal(), uint64(0), "incorrect number of mime emails deleted")
 
 		t.Logf("Deleted %d mime emails in %s", testRuns, time.Since(delStart))
 
@@ -79,56 +79,64 @@ func TestMimeEmailInserts(t *testing.T) {
 }
 
 func TestRetrieveMimeEmail(t *testing.T) {
-	for _, tenantID := range []string{"", "MyServer 3", "host.example.com"} {
-		tenantID = config.DBTenantID(tenantID)
+	compressionLevels := []int{0, 1, 2, 3}
 
-		setup(tenantID)
+	for _, compressionLevel := range compressionLevels {
+		t.Logf("Testing compression level: %d", compressionLevel)
+		for _, tenantID := range []string{"", "MyServer 3", "host.example.com"} {
+			tenantID = config.DBTenantID(tenantID)
+			config.Compression = compressionLevel
+			setup(tenantID)
 
-		if tenantID == "" {
-			t.Log("Testing mime email retrieval")
-		} else {
-			t.Logf("Testing mime email retrieval (tenant %s)", tenantID)
+			if tenantID == "" {
+				t.Log("Testing mime email retrieval")
+			} else {
+				t.Logf("Testing mime email retrieval (tenant %s)", tenantID)
+			}
+
+			id, err := Store(&testMimeEmail, nil)
+			if err != nil {
+				t.Log("error ", err)
+				t.Fail()
+			}
+
+			msg, err := GetMessage(id)
+			if err != nil {
+				t.Log("error ", err)
+				t.Fail()
+			}
+
+			assertEqual(t, msg.From.Name, "Sender Smith", "\"From\" name does not match")
+			assertEqual(t, msg.From.Address, "sender2@example.com", "\"From\" address does not match")
+			assertEqual(t, msg.Subject, "inline + attachment", "subject does not match")
+			assertEqual(t, len(msg.To), 1, "incorrect number of recipients")
+			assertEqual(t, msg.To[0].Name, "Recipient Ross", "\"To\" name does not match")
+			assertEqual(t, msg.To[0].Address, "recipient2@example.com", "\"To\" address does not match")
+			assertEqual(t, len(msg.Attachments), 1, "incorrect number of attachments")
+			assertEqual(t, msg.Attachments[0].FileName, "Sample PDF.pdf", "attachment filename does not match")
+			assertEqual(t, len(msg.Inline), 1, "incorrect number of inline attachments")
+			assertEqual(t, msg.Inline[0].FileName, "inline-image.jpg", "inline attachment filename does not match")
+
+			attachmentData, err := GetAttachmentPart(id, msg.Attachments[0].PartID)
+			if err != nil {
+				t.Log("error ", err)
+				t.Fail()
+			}
+			assertEqual(t, uint64(len(attachmentData.Content)), msg.Attachments[0].Size, "attachment size does not match")
+
+			inlineData, err := GetAttachmentPart(id, msg.Inline[0].PartID)
+			if err != nil {
+				t.Log("error ", err)
+				t.Fail()
+			}
+			assertEqual(t, uint64(len(inlineData.Content)), msg.Inline[0].Size, "inline attachment size does not match")
+
+			Close()
 		}
-
-		id, err := Store(&testMimeEmail)
-		if err != nil {
-			t.Log("error ", err)
-			t.Fail()
-		}
-
-		msg, err := GetMessage(id)
-		if err != nil {
-			t.Log("error ", err)
-			t.Fail()
-		}
-
-		assertEqual(t, msg.From.Name, "Sender Smith", "\"From\" name does not match")
-		assertEqual(t, msg.From.Address, "sender2@example.com", "\"From\" address does not match")
-		assertEqual(t, msg.Subject, "inline + attachment", "subject does not match")
-		assertEqual(t, len(msg.To), 1, "incorrect number of recipients")
-		assertEqual(t, msg.To[0].Name, "Recipient Ross", "\"To\" name does not match")
-		assertEqual(t, msg.To[0].Address, "recipient2@example.com", "\"To\" address does not match")
-		assertEqual(t, len(msg.Attachments), 1, "incorrect number of attachments")
-		assertEqual(t, msg.Attachments[0].FileName, "Sample PDF.pdf", "attachment filename does not match")
-		assertEqual(t, len(msg.Inline), 1, "incorrect number of inline attachments")
-		assertEqual(t, msg.Inline[0].FileName, "inline-image.jpg", "inline attachment filename does not match")
-
-		attachmentData, err := GetAttachmentPart(id, msg.Attachments[0].PartID)
-		if err != nil {
-			t.Log("error ", err)
-			t.Fail()
-		}
-		assertEqual(t, float64(len(attachmentData.Content)), msg.Attachments[0].Size, "attachment size does not match")
-
-		inlineData, err := GetAttachmentPart(id, msg.Inline[0].PartID)
-		if err != nil {
-			t.Log("error ", err)
-			t.Fail()
-		}
-		assertEqual(t, float64(len(inlineData.Content)), msg.Inline[0].Size, "inline attachment size does not match")
-
-		Close()
 	}
+
+	// reset compression
+	config.Compression = 1
 }
 
 func TestMessageSummary(t *testing.T) {
@@ -143,7 +151,7 @@ func TestMessageSummary(t *testing.T) {
 			t.Logf("Testing message summary (tenant %s)", tenantID)
 		}
 
-		if _, err := Store(&testMimeEmail); err != nil {
+		if _, err := Store(&testMimeEmail, nil); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
@@ -177,7 +185,7 @@ func BenchmarkImportText(b *testing.B) {
 	defer Close()
 
 	for i := 0; i < b.N; i++ {
-		if _, err := Store(&testTextEmail); err != nil {
+		if _, err := Store(&testTextEmail, nil); err != nil {
 			b.Log("error ", err)
 			b.Fail()
 		}
@@ -189,7 +197,7 @@ func BenchmarkImportMime(b *testing.B) {
 	defer Close()
 
 	for i := 0; i < b.N; i++ {
-		if _, err := Store(&testMimeEmail); err != nil {
+		if _, err := Store(&testMimeEmail, nil); err != nil {
 			b.Log("error ", err)
 			b.Fail()
 		}

internal/storage/notifications.go

@@ -24,8 +24,8 @@ func BroadcastMailboxStats() {
 		time.Sleep(250 * time.Millisecond)
 		bcStatsDelay = false
 		b := struct {
-			Total   float64
-			Unread  float64
+			Total   uint64
+			Unread  uint64
 			Version string
 		}{
 			Total:   CountTotal(),

internal/storage/reindex.go

@@ -11,7 +11,7 @@ import (
 
 	"github.com/axllent/mailpit/internal/logger"
 	"github.com/axllent/mailpit/internal/tools"
-	"github.com/jhillyerd/enmime"
+	"github.com/jhillyerd/enmime/v2"
 	"github.com/leporo/sqlf"
 )
 
@@ -73,23 +73,22 @@ func ReindexAll() {
 				continue
 			}
 
-			from := &mail.Address{}
+			meta, _ := GetMetadata(id)
+
 			fromJSON := addressToSlice(env, "From")
 			if len(fromJSON) > 0 {
-				from = fromJSON[0]
+				meta.From = fromJSON[0]
 			} else if env.GetHeader("From") != "" {
-				from = &mail.Address{Name: env.GetHeader("From")}
+				meta.From = &mail.Address{Name: env.GetHeader("From")}
+			} else {
+				meta.From = nil
 			}
+			meta.To = addressToSlice(env, "To")
+			meta.Cc = addressToSlice(env, "Cc")
+			meta.Bcc = addressToSlice(env, "Bcc")
+			meta.ReplyTo = addressToSlice(env, "Reply-To")
 
-			obj := DBMailSummary{
-				From:    from,
-				To:      addressToSlice(env, "To"),
-				Cc:      addressToSlice(env, "Cc"),
-				Bcc:     addressToSlice(env, "Bcc"),
-				ReplyTo: addressToSlice(env, "Reply-To"),
-			}
-
-			MetadataJSON, err := json.Marshal(obj)
+			MetadataJSON, err := json.Marshal(meta)
 			if err != nil {
 				logger.Log().Errorf("[message] %s", err.Error())
 				continue
@@ -115,7 +114,7 @@ func ReindexAll() {
 		}
 
 		// roll back if it fails
-		defer tx.Rollback()
+		defer func() { _ = tx.Rollback() }()
 
 		// insert mail summary data
 		for _, u := range updates {

internal/storage/schemas/1.21.8.sql

@@ -0,0 +1,22 @@
+-- Rebuild message_tags to remove FOREIGN KEY REFERENCES
+PRAGMA foreign_keys=OFF;
+
+DROP INDEX IF EXISTS {{ tenant "idx_message_tag_id" }};
+DROP INDEX IF EXISTS {{ tenant "idx_message_tag_tagid" }};
+
+ALTER TABLE {{ tenant "message_tags" }} RENAME TO _{{ tenant "message_tags" }}_old;
+
+CREATE TABLE IF NOT EXISTS {{ tenant "message_tags" }} (
+	Key INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+	ID TEXT NOT NULL,
+	TagID INTEGER NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS {{ tenant "idx_message_tags_id" }} ON {{ tenant "message_tags" }} (ID);
+CREATE INDEX IF NOT EXISTS {{ tenant "idx_message_tags_tagid" }} ON {{ tenant "message_tags" }} (TagID);
+
+INSERT INTO {{ tenant "message_tags" }} SELECT * FROM _{{ tenant "message_tags" }}_old;
+
+DROP TABLE IF EXISTS _{{ tenant "message_tags" }}_old;
+
+PRAGMA foreign_keys=ON;

internal/storage/schemas/1.23.0.sql

@@ -0,0 +1,5 @@
+-- CREATE Compressed COLUMN IN mailbox_data
+ALTER TABLE {{ tenant "mailbox_data" }} ADD COLUMN Compressed INTEGER NOT NULL DEFAULT '0';
+
+-- SET Compressed = 1 for all existing data
+UPDATE {{ tenant "mailbox_data" }} SET Compressed = 1;

internal/storage/search.go

@@ -13,6 +13,7 @@ import (
 	"github.com/araddon/dateparse"
 	"github.com/axllent/mailpit/internal/logger"
 	"github.com/axllent/mailpit/internal/tools"
+	"github.com/axllent/mailpit/server/websockets"
 	"github.com/leporo/sqlf"
 )
 
@@ -38,12 +39,12 @@ func Search(search, timezone string, start int, beforeTS int64, limit int) ([]Me
 	var err error
 
 	if err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
-		var created float64
+		var created float64 // use float64 for rqlite compatibility
 		var id string
 		var messageID string
 		var subject string
 		var metadata string
-		var size float64
+		var size float64 // use float64 for rqlite compatibility
 		var attachments int
 		var snippet string
 		var read int
@@ -64,7 +65,7 @@ func Search(search, timezone string, start int, beforeTS int64, limit int) ([]Me
 		em.ID = id
 		em.MessageID = messageID
 		em.Subject = subject
-		em.Size = size
+		em.Size = uint64(size)
 		em.Attachments = attachments
 		em.Read = read == 1
 		em.Snippet = snippet
@@ -99,6 +100,39 @@ func Search(search, timezone string, start int, beforeTS int64, limit int) ([]Me
 	return results, nrResults, err
 }
 
+// SearchUnreadCount returns the number of unread messages matching a search.
+// This is run one at a time to allow connected browsers to be updated.
+func SearchUnreadCount(search, timezone string, beforeTS int64) (int64, error) {
+	tsStart := time.Now()
+
+	q := searchQueryBuilder(search, timezone)
+
+	if beforeTS > 0 {
+		q = q.Where(`Created < ?`, beforeTS)
+	}
+
+	var unread float64 // use float64 for rqlite compatibility
+
+	q = q.Where("Read = 0").Select(`COUNT(*)`)
+
+	err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		var ignore sql.NullString
+		if err := row.Scan(&ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore, &unread); err != nil {
+			logger.Log().Errorf("[db] %s", err.Error())
+			return
+		}
+
+	})
+
+	dbLastAction = time.Now()
+
+	elapsed := time.Since(tsStart)
+
+	logger.Log().Debugf("[db] counted %d unread for \"%s\" in %s", int64(unread), search, elapsed)
+
+	return int64(unread), err
+}
+
 // DeleteSearch will delete all messages for search terms.
 // The search is broken up by segments (exact phrases can be quoted), and interprets specific terms such as:
 // is:read, is:unread, has:attachment, to:<term>, from:<term> & subject:<term>
@@ -107,15 +141,15 @@ func DeleteSearch(search, timezone string) error {
 	q := searchQueryBuilder(search, timezone)
 
 	ids := []string{}
-	deleteSize := float64(0)
+	deleteSize := uint64(0)
 
 	if err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
-		var created float64
+		var created float64 // use float64 for rqlite compatibility
 		var id string
 		var messageID string
 		var subject string
 		var metadata string
-		var size float64
+		var size float64 // use float64 for rqlite compatibility
 		var attachments int
 		var read int
 		var snippet string
@@ -127,7 +161,7 @@ func DeleteSearch(search, timezone string) error {
 		}
 
 		ids = append(ids, id)
-		deleteSize = deleteSize + size
+		deleteSize = deleteSize + uint64(size)
 	}); err != nil {
 		return err
 	}
@@ -159,7 +193,7 @@ func DeleteSearch(search, timezone string) error {
 		}
 
 		// roll back if it fails
-		defer tx.Rollback()
+		defer func() { _ = tx.Rollback() }()
 
 		for _, ids := range chunks {
 			delIDs := make([]interface{}, len(ids))
@@ -189,19 +223,31 @@ func DeleteSearch(search, timezone string) error {
 			}
 		}
 
-		err = tx.Commit()
+		if err := tx.Commit(); err != nil {
+			return err
+		}
 
 		if err := pruneUnusedTags(); err != nil {
 			return err
 		}
 
-		if err == nil {
-			logger.Log().Debugf("[db] deleted %d messages matching %s", total, search)
-		}
+		logger.Log().Debugf("[db] deleted %d messages matching %s", total, search)
 
 		dbLastAction = time.Now()
 
-		addDeletedSize(int64(deleteSize))
+		// broadcast changes
+		if len(ids) > 200 {
+			websockets.Broadcast("prune", nil)
+		} else {
+			for _, id := range ids {
+				d := struct {
+					ID string
+				}{ID: id}
+				websockets.Broadcast("delete", d)
+			}
+		}
+
+		addDeletedSize(deleteSize)
 
 		logMessagesDeleted(total)
 
@@ -211,6 +257,47 @@ func DeleteSearch(search, timezone string) error {
 	return nil
 }
 
+// SetSearchReadStatus marks all messages matching the search as read or unread
+func SetSearchReadStatus(search, timezone string, read bool) error {
+	q := searchQueryBuilder(search, timezone).Where("Read = ?", !read)
+
+	ids := []string{}
+
+	if err := q.QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		var created float64 // use float64 for rqlite compatibility
+		var id string
+		var messageID string
+		var subject string
+		var metadata string
+		var size float64 // use float64 for rqlite compatibility
+		var attachments int
+		var read int
+		var snippet string
+		var ignore string
+
+		if err := row.Scan(&created, &id, &messageID, &subject, &metadata, &size, &attachments, &read, &snippet, &ignore, &ignore, &ignore, &ignore, &ignore); err != nil {
+			logger.Log().Errorf("[db] %s", err.Error())
+			return
+		}
+
+		ids = append(ids, id)
+	}); err != nil {
+		return err
+	}
+
+	if read {
+		if err := MarkRead(ids); err != nil {
+			return err
+		}
+	} else {
+		if err := MarkUnread(ids); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 // SearchParser returns the SQL syntax for the database search based on the search arguments
 func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 	// group strings with quotes as a single argument and remove quotes
@@ -252,8 +339,8 @@ func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 			lw = lw[1:]
 		}
 
-		re := regexp.MustCompile(`[a-zA-Z0-9]+`)
-		if !re.MatchString(w) {
+		// ignore blank searches
+		if len(w) == 0 {
 			continue
 		}
 
@@ -432,7 +519,7 @@ func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 //
 // K, k, Kb, KB, kB and kb are treated as Kilobytes.
 // M, m, Mb, MB and mb are treated as Megabytes.
-func sizeToBytes(v string) int64 {
+func sizeToBytes(v string) uint64 {
 	v = strings.ToLower(v)
 	re := regexp.MustCompile(`^(\d+)(\.\d+)?\s?([a-z]{1,2})?$`)
 
@@ -450,15 +537,15 @@ func sizeToBytes(v string) int64 {
 	}
 
 	if unit == "" {
-		return int64(i)
+		return uint64(i)
 	}
 
 	if unit == "k" || unit == "kb" {
-		return int64(i * 1024)
+		return uint64(i * 1024)
 	}
 
 	if unit == "m" || unit == "mb" {
-		return int64(i * 1024 * 1024)
+		return uint64(i * 1024 * 1024)
 	}
 
 	return 0

internal/storage/search_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 
 	"github.com/axllent/mailpit/config"
-	"github.com/jhillyerd/enmime"
+	"github.com/jhillyerd/enmime/v2"
 )
 
 func TestSearch(t *testing.T) {
@@ -48,7 +48,7 @@ func TestSearch(t *testing.T) {
 
 			bufBytes := buf.Bytes()
 
-			if _, err := Store(&bufBytes); err != nil {
+			if _, err := Store(&bufBytes, nil); err != nil {
 				t.Log("error ", err)
 				t.Fail()
 			}
@@ -117,11 +117,11 @@ func TestSearchDelete100(t *testing.T) {
 		}
 
 		for i := 0; i < 100; i++ {
-			if _, err := Store(&testTextEmail); err != nil {
+			if _, err := Store(&testTextEmail, nil); err != nil {
 				t.Log("error ", err)
 				t.Fail()
 			}
-			if _, err := Store(&testMimeEmail); err != nil {
+			if _, err := Store(&testMimeEmail, nil); err != nil {
 				t.Log("error ", err)
 				t.Fail()
 			}
@@ -158,7 +158,7 @@ func TestSearchDelete1100(t *testing.T) {
 
 	t.Log("Testing search delete of 1100 messages")
 	for i := 0; i < 1100; i++ {
-		if _, err := Store(&testTextEmail); err != nil {
+		if _, err := Store(&testTextEmail, nil); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
@@ -203,7 +203,7 @@ func TestEscPercentChar(t *testing.T) {
 }
 
 func TestSizeToBytes(t *testing.T) {
-	tests := map[string]int64{}
+	tests := map[string]uint64{}
 	tests["1m"] = 1048576
 	tests["1mb"] = 1048576
 	tests["1 M"] = 1048576

internal/storage/settings.go

@@ -35,8 +35,8 @@ func SettingPut(k, v string) error {
 }
 
 // The total deleted message size as an int64 value
-func getDeletedSize() float64 {
-	var result sql.NullFloat64
+func getDeletedSize() uint64 {
+	var result sql.NullFloat64 // use float64 for rqlite compatibility
 	err := sqlf.From(tenant("settings")).
 		Select("Value").To(&result).
 		Where("Key = ?", "DeletedSize").
@@ -47,11 +47,11 @@ func getDeletedSize() float64 {
 		return 0
 	}
 
-	return result.Float64
+	return uint64(result.Float64)
 }
 
 // The total raw non-compressed messages size in bytes of all messages in the database
-func totalMessagesSize() float64 {
+func totalMessagesSize() uint64 {
 	var result sql.NullFloat64
 	err := sqlf.From(tenant("mailbox")).
 		Select("SUM(Size)").To(&result).
@@ -61,11 +61,11 @@ func totalMessagesSize() float64 {
 		return 0
 	}
 
-	return result.Float64
+	return uint64(result.Float64)
 }
 
 // AddDeletedSize will add the value to the DeletedSize setting
-func addDeletedSize(v int64) {
+func addDeletedSize(v uint64) {
 	if _, err := db.Exec(`INSERT OR IGNORE INTO `+tenant("settings")+` (Key, Value) VALUES(?, ?)`, "DeletedSize", 0); err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
 	}

internal/storage/structs.go

@@ -28,18 +28,20 @@ type Message struct {
 	// Message subject
 	Subject string
 	// List-Unsubscribe header information
-	// swagger:ignore
 	ListUnsubscribe ListUnsubscribe
-	// Message date if set, else date received
+	// Message RFC3339Nano date & time (if set), else date & time received
+	// ([extended RFC3339](https://tools.ietf.org/html/rfc3339#section-5.6) format with optional nano seconds)
 	Date time.Time
 	// Message tags
 	Tags []string
+	// Username used for authentication (if provided) with the SMTP or Send API
+	Username string
 	// Message body text
 	Text string
 	// Message body HTML
 	HTML string
 	// Message size in bytes
-	Size float64
+	Size uint64
 	// Inline message attachments
 	Inline []Attachment
 	// Message attachments
@@ -59,7 +61,7 @@ type Attachment struct {
 	// Content ID
 	ContentID string
 	// Size in bytes
-	Size float64
+	Size uint64
 }
 
 // MessageSummary struct for frontend messages
@@ -84,12 +86,14 @@ type MessageSummary struct {
 	ReplyTo []*mail.Address
 	// Email subject
 	Subject string
-	// Created time
+	// Received RFC3339Nano date & time ([extended RFC3339](https://tools.ietf.org/html/rfc3339#section-5.6) format with optional nano seconds)
 	Created time.Time
+	// Username used for authentication (if provided) with the SMTP or Send API
+	Username string
 	// Message tags
 	Tags []string
 	// Message size in bytes (total)
-	Size float64
+	Size uint64
 	// Whether the message has any attachments
 	Attachments int
 	// Message snippet includes up to 250 characters
@@ -98,18 +102,19 @@ type MessageSummary struct {
 
 // MailboxStats struct for quick mailbox total/read lookups
 type MailboxStats struct {
-	Total  float64
-	Unread float64
+	Total  uint64
+	Unread uint64
 	Tags   []string
 }
 
-// DBMailSummary struct for storing mail summary
-type DBMailSummary struct {
-	From    *mail.Address
-	To      []*mail.Address
-	Cc      []*mail.Address
-	Bcc     []*mail.Address
-	ReplyTo []*mail.Address
+// Metadata struct for storing message metadata
+type Metadata struct {
+	From     *mail.Address   `json:"From,omitempty"`
+	To       []*mail.Address `json:"To,omitempty"`
+	Cc       []*mail.Address `json:"Cc,omitempty"`
+	Bcc      []*mail.Address `json:"Bcc,omitempty"`
+	ReplyTo  []*mail.Address `json:"ReplyTo,omitempty"`
+	Username string          `json:"Username,omitempty"`
 }
 
 // ListUnsubscribe contains a summary of List-Unsubscribe & List-Unsubscribe-Post headers
@@ -117,10 +122,10 @@ type DBMailSummary struct {
 type ListUnsubscribe struct {
 	// List-Unsubscribe header value
 	Header string
-	// Detected links, maximum one email and one HTTP(S)
+	// Detected links, maximum one email and one HTTP(S) link
 	Links []string
-	// Validation errors if any
+	// Validation errors (if any)
 	Errors string
-	// List-Unsubscribe-Post value if set
+	// List-Unsubscribe-Post value (if set)
 	HeaderPost string
 }

internal/storage/tagfilters.go

@@ -33,7 +33,7 @@ func LoadTagFilters() {
 			logger.Log().Warnf("[tags] ignoring tag item with missing 'match'")
 			continue
 		}
-		if t.Tags == nil || len(t.Tags) == 0 {
+		if len(t.Tags) == 0 {
 			logger.Log().Warnf("[tags] ignoring tag items with missing 'tags' array")
 			continue
 		}

internal/storage/tags.go

@@ -138,17 +138,6 @@ func deleteMessageTag(id, name string) error {
 	return pruneUnusedTags()
 }
 
-// DeleteAllMessageTags deleted all tags from a message
-func DeleteAllMessageTags(id string) error {
-	if _, err := sqlf.DeleteFrom(tenant("message_tags")).
-		Where(tenant("message_tags.ID")+" = ?", id).
-		ExecAndClose(context.TODO(), db); err != nil {
-		return err
-	}
-
-	return pruneUnusedTags()
-}
-
 // GetAllTags returns all used tags
 func GetAllTags() []string {
 	var tags = []string{}
@@ -171,7 +160,7 @@ func GetAllTags() []string {
 func GetAllTagsCount() map[string]int64 {
 	var tags = make(map[string]int64)
 	var name string
-	var total int64
+	var total float64 // use float64 for rqlite compatibility
 
 	if err := sqlf.
 		Select(`Name`).To(&name).
@@ -181,7 +170,7 @@ func GetAllTagsCount() map[string]int64 {
 		GroupBy(tenant("message_tags.TagID")).
 		OrderBy("Name").
 		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
-			tags[name] = total
+			tags[name] = int64(total)
 		}); err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
 	}
@@ -323,7 +312,7 @@ func findTagsInRawMessage(message *[]byte) []string {
 }
 
 // Returns tags found in email plus addresses (eg: test+tagname@example.com)
-func (d DBMailSummary) tagsFromPlusAddresses() []string {
+func (d Metadata) tagsFromPlusAddresses() []string {
 	tags := []string{}
 	for _, c := range d.To {
 		matches := addressPlusRe.FindAllStringSubmatch(c.Address, 1)

internal/storage/tags_test.go

@@ -1,11 +1,13 @@
 package storage
 
 import (
+	"context"
 	"fmt"
 	"strings"
 	"testing"
 
 	"github.com/axllent/mailpit/config"
+	"github.com/leporo/sqlf"
 )
 
 func TestTags(t *testing.T) {
@@ -24,7 +26,7 @@ func TestTags(t *testing.T) {
 		ids := []string{}
 
 		for i := 0; i < 10; i++ {
-			id, err := Store(&testMimeEmail)
+			id, err := Store(&testMimeEmail, nil)
 			if err != nil {
 				t.Log("error ", err)
 				t.Fail()
@@ -57,7 +59,7 @@ func TestTags(t *testing.T) {
 		}
 
 		// test 20 tags
-		id, err := Store(&testMimeEmail)
+		id, err := Store(&testMimeEmail, nil)
 		if err != nil {
 			t.Log("error ", err)
 			t.Fail()
@@ -83,7 +85,7 @@ func TestTags(t *testing.T) {
 		assertEqual(t, strings.Join(newTags[1:], "|"), strings.Join(returnedTags, "|"), "Message tags do not match after deleting 1")
 
 		// remove all tags
-		if err := DeleteAllMessageTags(id); err != nil {
+		if err := deleteAllMessageTags(id); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
@@ -97,7 +99,7 @@ func TestTags(t *testing.T) {
 		}
 		returnedTags = getMessageTags(id)
 		assertEqual(t, "Duplicate Tag", strings.Join(returnedTags, "|"), "Message tags should be duplicated")
-		if err := DeleteAllMessageTags(id); err != nil {
+		if err := deleteAllMessageTags(id); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
@@ -109,7 +111,7 @@ func TestTags(t *testing.T) {
 		}
 		returnedTags = getMessageTags(id)
 		assertEqual(t, "Dirty Tag", strings.Join(returnedTags, "|"), "Dirty message tag did not clean as expected")
-		if err := DeleteAllMessageTags(id); err != nil {
+		if err := deleteAllMessageTags(id); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
@@ -124,7 +126,7 @@ func TestTags(t *testing.T) {
 		}
 
 		// test 20 tags
-		id, err = Store(&testTagEmail)
+		id, err = Store(&testTagEmail, nil)
 		if err != nil {
 			t.Log("error ", err)
 			t.Fail()
@@ -132,7 +134,7 @@ func TestTags(t *testing.T) {
 
 		returnedTags = getMessageTags(id)
 		assertEqual(t, "BccTag|CcTag|FromFag|ToTag|X-tag1|X-tag2", strings.Join(returnedTags, "|"), "Tags not detected correctly")
-		if err := DeleteAllMessageTags(id); err != nil {
+		if err := deleteAllMessageTags(id); err != nil {
 			t.Log("error ", err)
 			t.Fail()
 		}
@@ -141,3 +143,59 @@ func TestTags(t *testing.T) {
 	}
 
 }
+func TestUsernameAutoTagging(t *testing.T) {
+	setup("")
+	defer Close()
+
+	username := "testuser"
+
+	t.Run("Auto-tagging enabled", func(t *testing.T) {
+		config.TagsUsername = true
+		id, err := Store(&testTextEmail, &username)
+		if err != nil {
+			t.Fatalf("Store failed: %v", err)
+		}
+		msg, err := GetMessage(id)
+		if err != nil {
+			t.Fatalf("GetMessage failed: %v", err)
+		}
+		found := false
+		for _, tag := range msg.Tags {
+			if tag == username {
+				found = true
+				break
+			}
+		}
+		if !found {
+			t.Errorf("Expected username '%s' in tags, got %v", username, msg.Tags)
+		}
+	})
+
+	t.Run("Auto-tagging disabled", func(t *testing.T) {
+		config.TagsUsername = false
+		id, err := Store(&testTextEmail, &username)
+		if err != nil {
+			t.Fatalf("Store failed: %v", err)
+		}
+		msg, err := GetMessage(id)
+		if err != nil {
+			t.Fatalf("GetMessage failed: %v", err)
+		}
+		for _, tag := range msg.Tags {
+			if tag == username {
+				t.Errorf("Did not expect username '%s' in tags when disabled, got %v", username, msg.Tags)
+			}
+		}
+	})
+}
+
+// DeleteAllMessageTags deleted all tags from a message
+func deleteAllMessageTags(id string) error {
+	if _, err := sqlf.DeleteFrom(tenant("message_tags")).
+		Where(tenant("message_tags.ID")+" = ?", id).
+		ExecAndClose(context.TODO(), db); err != nil {
+		return err
+	}
+
+	return pruneUnusedTags()
+}

internal/storage/utils.go

@@ -9,14 +9,15 @@ import (
 
 	"github.com/axllent/mailpit/internal/html2text"
 	"github.com/axllent/mailpit/internal/logger"
-	"github.com/jhillyerd/enmime"
+	"github.com/axllent/mailpit/internal/tools"
+	"github.com/jhillyerd/enmime/v2"
 )
 
 var (
 	// for stats to prevent import cycle
 	mu sync.RWMutex
 	// StatsDeleted for counting the number of messages deleted
-	StatsDeleted float64
+	StatsDeleted uint64
 )
 
 // AddTempFile adds a file to the slice of files to delete on exit
@@ -88,7 +89,7 @@ func cleanString(str string) string {
 // LogMessagesDeleted logs the number of messages deleted
 func logMessagesDeleted(n int) {
 	mu.Lock()
-	StatsDeleted = StatsDeleted + float64(n)
+	StatsDeleted = StatsDeleted + tools.SafeUint64(n)
 	mu.Unlock()
 }
 

internal/tools/fs.go

@@ -0,0 +1,23 @@
+package tools
+
+import (
+	"os"
+	"path/filepath"
+)
+
+// IsFile returns whether a file exists and is readable
+func IsFile(path string) bool {
+	f, err := os.Open(filepath.Clean(path))
+	defer func() { _ = f.Close() }()
+	return err == nil
+}
+
+// IsDir returns whether a path is a directory
+func IsDir(path string) bool {
+	info, err := os.Stat(path)
+	if err != nil || os.IsNotExist(err) || !info.IsDir() {
+		return false
+	}
+
+	return true
+}

internal/tools/headers.go

@@ -6,6 +6,7 @@ import (
 	"bytes"
 	"net/mail"
 	"regexp"
+	"strings"
 
 	"github.com/axllent/mailpit/internal/logger"
 )
@@ -48,7 +49,7 @@ func RemoveMessageHeaders(msg []byte, headers []string) ([]byte, error) {
 			}
 
 			if len(hdr) > 0 {
-				logger.Log().Debugf("[release] removed %s header", hdr)
+				logger.Log().Debugf("[relay] removed %s header", hdr)
 				msg = bytes.Replace(msg, hdr, []byte(""), 1)
 			}
 		}
@@ -57,8 +58,10 @@ func RemoveMessageHeaders(msg []byte, headers []string) ([]byte, error) {
 	return msg, nil
 }
 
-// UpdateMessageHeader scans a message for a header and updates its value if found.
-func UpdateMessageHeader(msg []byte, header, value string) ([]byte, error) {
+// SetMessageHeader scans a message for a header and updates its value if found.
+// It does not consider multiple instances of the same header.
+// If not found it will add the header to the beginning of the message.
+func SetMessageHeader(msg []byte, header, value string) ([]byte, error) {
 	reader := bytes.NewReader(msg)
 	m, err := mail.ReadMessage(reader)
 	if err != nil {
@@ -89,10 +92,68 @@ func UpdateMessageHeader(msg []byte, header, value string) ([]byte, error) {
 			}
 		}
 
-		if len(hdr) > 0 {
-			logger.Log().Debugf("[release] replaced %s header", hdr)
-			msg = bytes.Replace(msg, hdr, []byte(header+": "+value+"\r\n"), 1)
+		return bytes.Replace(msg, hdr, []byte(header+": "+value+"\r\n"), 1), nil
+	}
+
+	// no header, so add one to beginning
+	return append([]byte(header+": "+value+"\r\n"), msg...), nil
+}
+
+// OverrideFromHeader scans a message for the From header and replaces it with a different email address.
+func OverrideFromHeader(msg []byte, address string) ([]byte, error) {
+	reader := bytes.NewReader(msg)
+	m, err := mail.ReadMessage(reader)
+	if err != nil {
+		return nil, err
+	}
+
+	if m.Header.Get("From") != "" {
+		reBlank := regexp.MustCompile(`^\s+`)
+		reHdr := regexp.MustCompile(`(?i)^` + regexp.QuoteMeta("From:"))
+
+		scanner := bufio.NewScanner(bytes.NewReader(msg))
+		found := false
+		hdr := []byte("")
+		for scanner.Scan() {
+			line := scanner.Bytes()
+			if !found && reHdr.Match(line) {
+				// add the first line starting with <header>:
+				hdr = append(hdr, line...)
+				hdr = append(hdr, []byte("\r\n")...)
+				found = true
+			} else if found && reBlank.Match(line) {
+				// add any following lines starting with a whitespace (tab or space)
+				hdr = append(hdr, line...)
+				hdr = append(hdr, []byte("\r\n")...)
+			} else if found {
+				// stop scanning, we have the full <header>
+				break
+			}
 		}
+
+		if len(hdr) > 0 {
+			originalFrom := strings.TrimRight(string(hdr[5:]), "\r\n")
+
+			from, err := mail.ParseAddress(originalFrom)
+			if err != nil {
+				// error parsing the from address, so just replace the whole line
+				msg = bytes.Replace(msg, hdr, []byte("From: "+address+"\r\n"), 1)
+			} else {
+				originalFrom = from.Address
+				// replace the from email, but keep the original name
+				from.Address = address
+				msg = bytes.Replace(msg, hdr, []byte("From: "+from.String()+"\r\n"), 1)
+			}
+
+			// insert the original From header as X-Original-From
+			msg = append([]byte("X-Original-From: "+originalFrom+"\r\n"), msg...)
+
+			logger.Log().Debugf("[relay] Replaced From email address with %s", address)
+		}
+	} else {
+		// no From header, so add one
+		msg = append([]byte("From: "+address+"\r\n"), msg...)
+		logger.Log().Debugf("[relay] Added From email: %s", address)
 	}
 
 	return msg, nil

internal/tools/html.go

@@ -17,3 +17,34 @@ func GetHTMLAttributeVal(e *html.Node, key string) (string, error) {
 
 	return "", fmt.Errorf("%s not found", key)
 }
+
+// SetHTMLAttributeVal sets an attribute on a node.
+func SetHTMLAttributeVal(n *html.Node, key, val string) {
+	for i := range n.Attr {
+		a := &n.Attr[i]
+		if a.Key == key {
+			a.Val = val
+			return
+		}
+	}
+	n.Attr = append(n.Attr, html.Attribute{
+		Key: key,
+		Val: val,
+	})
+}
+
+// WalkHTML traverses the entire HTML tree and calls fn on each node.
+func WalkHTML(n *html.Node, fn func(*html.Node)) {
+	if n == nil {
+		return
+	}
+
+	fn(n)
+
+	// Each node has a pointer to its first child and next sibling. To traverse
+	// all children of a node, we need to start from its first child and then
+	// traverse the next sibling until nil.
+	for c := n.FirstChild; c != nil; c = c.NextSibling {
+		WalkHTML(c, fn)
+	}
+}

internal/tools/listunsubscribeparser.go

@@ -27,7 +27,7 @@ func ListUnsubscribeParser(v string) ([]string, error) {
 	comments := reComments.FindAllStringSubmatch(v, -1)
 	for _, c := range comments {
 		// strip comments
-		v = strings.Replace(v, c[0], "", -1)
+		v = strings.ReplaceAll(v, c[0], "")
 		v = strings.TrimSpace(v)
 	}
 

internal/tools/snippets.go

@@ -26,7 +26,7 @@ func CreateSnippet(text, html string) string {
 			return data
 		}
 
-		return data[0:limit] + "..."
+		return truncate(data, limit) + "..."
 	}
 
 	if text != "" {
@@ -37,8 +37,33 @@ func CreateSnippet(text, html string) string {
 			return text
 		}
 
-		return text[0:limit] + "..."
+		return truncate(text, limit) + "..."
 	}
 
 	return ""
 }
+
+// Truncate a string allowing for multi-byte encoding.
+// Shamelessly borrowed from Tailscale.
+// See https://github.com/tailscale/tailscale/blob/main/util/truncate/truncate.go
+func truncate(s string, n int) string {
+	if n >= len(s) {
+		return s
+	}
+
+	// Back up until we find the beginning of a UTF-8 encoding.
+	for n > 0 && s[n-1]&0xc0 == 0x80 { // 0x10... is a continuation byte
+		n--
+	}
+
+	// If we're at the beginning of a multi-byte encoding, back up one more to
+	// skip it. It's possible the value was already complete, but it's simpler
+	// if we only have to check in one direction.
+	//
+	// Otherwise, we have a single-byte code (0x00... or 0x01...).
+	if n > 0 && s[n-1]&0xc0 == 0xc0 { // 0x11... starts a multibyte encoding
+		n--
+	}
+
+	return s[:n]
+}

internal/tools/utils.go

@@ -36,3 +36,22 @@ func Normalize(s string) string {
 
 	return strings.TrimSpace(s)
 }
+
+// SafeUint64 converts an int or int64 to uint64, ensuring it does not exceed the maximum value for uint64.
+func SafeUint64(i any) uint64 {
+	switch v := i.(type) {
+	case int:
+		if v < 0 {
+			return 0
+		}
+		return uint64(v)
+	case int64:
+		if v < 0 {
+			return 0
+		}
+		return uint64(v)
+	default:
+		// only accepts int or int64
+		return 0
+	}
+}

internal/updater/targz.go

@@ -1,218 +0,0 @@
-package updater
-
-import (
-	"archive/tar"
-	"bufio"
-	"compress/gzip"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-	"syscall"
-)
-
-// TarGZExtract extracts a archive from the file inputFilePath.
-// It tries to create the directory structure outputFilePath contains if it doesn't exist.
-// It returns potential errors to be checked or nil if everything works.
-func TarGZExtract(inputFilePath, outputFilePath string) (err error) {
-	outputFilePath = stripTrailingSlashes(outputFilePath)
-	inputFilePath, outputFilePath, err = makeAbsolute(inputFilePath, outputFilePath)
-	if err != nil {
-		return err
-	}
-	undoDir, err := mkdirAll(outputFilePath, 0750)
-	if err != nil {
-		return err
-	}
-	defer func() {
-		if err != nil {
-			undoDir()
-		}
-	}()
-
-	return extract(inputFilePath, outputFilePath)
-}
-
-// Creates all directories with os.MakedirAll and returns a function to remove the first created directory so cleanup is possible.
-func mkdirAll(dirPath string, perm os.FileMode) (func(), error) {
-	var undoDir string
-
-	for p := dirPath; ; p = filepath.Dir(p) {
-		finfo, err := os.Stat(p)
-		if err == nil {
-			if finfo.IsDir() {
-				break
-			}
-
-			finfo, err = os.Lstat(p)
-			if err != nil {
-				return nil, err
-			}
-
-			if finfo.IsDir() {
-				break
-			}
-
-			return nil, fmt.Errorf("mkdirAll (%s): %v", p, syscall.ENOTDIR)
-		}
-
-		if os.IsNotExist(err) {
-			undoDir = p
-		} else {
-			return nil, err
-		}
-	}
-
-	if undoDir == "" {
-		return func() {}, nil
-	}
-
-	if err := os.MkdirAll(dirPath, perm); err != nil {
-		return nil, err
-	}
-
-	return func() {
-		if err := os.RemoveAll(undoDir); err != nil {
-			panic(err)
-		}
-	}, nil
-}
-
-// Remove trailing slash if any.
-func stripTrailingSlashes(path string) string {
-	if len(path) > 0 && path[len(path)-1] == '/' {
-		path = path[0 : len(path)-1]
-	}
-
-	return path
-}
-
-// Make input and output paths absolute.
-func makeAbsolute(inputFilePath, outputFilePath string) (string, string, error) {
-	inputFilePath, err := filepath.Abs(inputFilePath)
-	if err == nil {
-		outputFilePath, err = filepath.Abs(outputFilePath)
-	}
-
-	return inputFilePath, outputFilePath, err
-}
-
-// Extract the file in filePath to directory.
-func extract(filePath string, directory string) error {
-	file, err := os.Open(filepath.Clean(filePath))
-	if err != nil {
-		return err
-	}
-
-	defer func() {
-		if err := file.Close(); err != nil {
-			fmt.Printf("Error closing file: %s\n", err)
-		}
-	}()
-
-	gzipReader, err := gzip.NewReader(bufio.NewReader(file))
-	if err != nil {
-		return err
-	}
-	defer gzipReader.Close()
-
-	tarReader := tar.NewReader(gzipReader)
-
-	// Post extraction directory permissions & timestamps
-	type DirInfo struct {
-		Path   string
-		Header *tar.Header
-	}
-
-	// slice to add all extracted directory info for post-processing
-	postExtraction := []DirInfo{}
-
-	for {
-		header, err := tarReader.Next()
-		if err == io.EOF {
-			break
-		}
-		if err != nil {
-			return err
-		}
-
-		fileInfo := header.FileInfo()
-		// paths could contain a '..', is used in a file system operations
-		if strings.Contains(fileInfo.Name(), "..") {
-			continue
-		}
-		dir := filepath.Join(directory, filepath.Dir(header.Name))
-		filename := filepath.Join(dir, fileInfo.Name())
-
-		if fileInfo.IsDir() {
-			// create the directory 755 in case writing permissions prohibit writing before files added
-			if err := os.MkdirAll(filename, 0750); err != nil {
-				return err
-			}
-
-			// set file ownership (if allowed)
-			// Chtimes() && Chmod() only set after once extraction is complete
-			_ = os.Chown(filename, header.Uid, header.Gid)
-
-			// add directory info to slice to process afterwards
-			postExtraction = append(postExtraction, DirInfo{filename, header})
-			continue
-		}
-
-		// make sure parent directory exists (may not be included in tar)
-		if !fileInfo.IsDir() && !isDir(dir) {
-			err = os.MkdirAll(dir, 0750)
-			if err != nil {
-				return err
-			}
-		}
-
-		file, err := os.Create(filepath.Clean(filename))
-		if err != nil {
-			return err
-		}
-
-		writer := bufio.NewWriter(file)
-
-		buffer := make([]byte, 4096)
-		for {
-			n, err := tarReader.Read(buffer)
-			if err != nil && err != io.EOF {
-				panic(err)
-			}
-			if n == 0 {
-				break
-			}
-
-			_, err = writer.Write(buffer[:n])
-			if err != nil {
-				return err
-			}
-		}
-
-		err = writer.Flush()
-		if err != nil {
-			return err
-		}
-
-		err = file.Close()
-		if err != nil {
-			return err
-		}
-
-		// set file permissions, timestamps & uid/gid
-		_ = os.Chmod(filename, os.FileMode(header.Mode)) // #nosec
-		_ = os.Chtimes(filename, header.AccessTime, header.ModTime)
-		_ = os.Chown(filename, header.Uid, header.Gid)
-	}
-
-	if len(postExtraction) > 0 {
-		for _, dir := range postExtraction {
-			_ = os.Chtimes(dir.Path, dir.Header.AccessTime, dir.Header.ModTime)
-			_ = os.Chmod(dir.Path, dir.Header.FileInfo().Mode().Perm())
-		}
-	}
-
-	return nil
-}

internal/updater/unzip.go

@@ -1,76 +0,0 @@
-package updater
-
-import (
-	"archive/zip"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-// Unzip will decompress a zip archive, moving all files and folders
-// within the zip file (src) to an output directory (dest).
-func Unzip(src string, dest string) ([]string, error) {
-
-	var filenames []string
-
-	r, err := zip.OpenReader(src)
-	if err != nil {
-		return filenames, err
-	}
-	defer r.Close()
-
-	for _, f := range r.File {
-
-		// Store filename/path for returning and using later on
-		fpath := filepath.Join(dest, filepath.Clean(f.Name))
-
-		// Check for ZipSlip. More Info: http://bit.ly/2MsjAWE
-		if !strings.HasPrefix(fpath, filepath.Clean(dest)+string(os.PathSeparator)) {
-			return filenames, fmt.Errorf("%s: illegal file path", fpath)
-		}
-
-		filenames = append(filenames, fpath)
-
-		if f.FileInfo().IsDir() {
-			// Make Folder
-			if err := os.MkdirAll(fpath, os.ModePerm); /* #nosec */ err != nil {
-				return filenames, err
-			}
-			continue
-		}
-
-		// Make File
-		if err = os.MkdirAll(filepath.Dir(fpath), os.ModePerm); /* #nosec */ err != nil {
-			return filenames, err
-		}
-
-		outFile, err := os.OpenFile(filepath.Clean(fpath), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
-		if err != nil {
-			return filenames, err
-		}
-
-		rc, err := f.Open()
-		if err != nil {
-			return filenames, err
-		}
-
-		_, err = io.Copy(outFile, rc) // #nosec - file is streamed from zip to file
-
-		// Close the file without defer to close before next iteration of loop
-		if err := outFile.Close(); err != nil {
-			return filenames, err
-		}
-
-		if err := rc.Close(); err != nil {
-			return filenames, err
-		}
-
-		if err != nil {
-			return filenames, err
-		}
-	}
-
-	return filenames, nil
-}

internal/updater/updater.go

@@ -1,347 +0,0 @@
-// package Updater checks and downloads new versions
-package updater
-
-import (
-	"crypto/rand"
-	"encoding/hex"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net/http"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
-	"time"
-
-	"github.com/axllent/mailpit/config"
-	"github.com/axllent/mailpit/internal/logger"
-	"github.com/axllent/semver"
-)
-
-var (
-	// AllowPrereleases defines whether pre-releases may be included
-	AllowPrereleases = false
-
-	// temporary directory
-	tempDir string
-)
-
-// Releases struct for Github releases json
-type Releases []struct {
-	Name       string `json:"name"`       // release name
-	Tag        string `json:"tag_name"`   // release tag
-	Prerelease bool   `json:"prerelease"` // Github pre-release
-	Assets     []struct {
-		BrowserDownloadURL string `json:"browser_download_url"`
-		ID                 int64  `json:"id"`
-		Name               string `json:"name"`
-		Size               int64  `json:"size"`
-	} `json:"assets"`
-}
-
-// Release struct contains the file data for downloadable release
-type Release struct {
-	Name string
-	Tag  string
-	URL  string
-	Size int64
-}
-
-// GithubLatest fetches the latest release info & returns release tag, filename & download url
-func GithubLatest(repo, name string) (string, string, string, error) {
-	releaseURL := fmt.Sprintf("https://api.github.com/repos/%s/releases", repo)
-
-	timeout := time.Duration(5 * time.Second)
-
-	client := http.Client{
-		Timeout: timeout,
-	}
-
-	req, err := http.NewRequest("GET", releaseURL, nil)
-	if err != nil {
-		return "", "", "", err
-	}
-
-	req.Header.Set("User-Agent", "Mailpit/"+config.Version)
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return "", "", "", err
-	}
-
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-
-	if err != nil {
-		return "", "", "", err
-	}
-
-	linkOS := runtime.GOOS
-	linkArch := runtime.GOARCH
-	linkExt := ".tar.gz"
-	if linkOS == "windows" {
-		// Windows uses .zip instead
-		linkExt = ".zip"
-	}
-
-	var allReleases = []Release{}
-
-	var releases Releases
-
-	if err := json.Unmarshal(body, &releases); err != nil {
-		return "", "", "", err
-	}
-
-	archiveName := fmt.Sprintf("%s-%s-%s%s", name, linkOS, linkArch, linkExt)
-
-	// loop through releases
-	for _, r := range releases {
-		if !semver.IsValid(r.Tag) {
-			// Invalid semversion, skip
-			continue
-		}
-
-		if !AllowPrereleases && (semver.Prerelease(r.Tag) != "" || r.Prerelease) {
-			// we don't accept AllowPrereleases, skip
-			continue
-		}
-
-		for _, a := range r.Assets {
-			if a.Name == archiveName {
-				thisRelease := Release{a.Name, r.Tag, a.BrowserDownloadURL, a.Size}
-				allReleases = append(allReleases, thisRelease)
-				break
-			}
-		}
-	}
-
-	if len(allReleases) == 0 {
-		// no releases with suitable assets found
-		return "", "", "", fmt.Errorf("No binary releases found")
-	}
-
-	var latestRelease = Release{}
-
-	for _, r := range allReleases {
-		// detect the latest release
-		if semver.Compare(r.Tag, latestRelease.Tag) == 1 {
-			latestRelease = r
-		}
-	}
-
-	return latestRelease.Tag, latestRelease.Name, latestRelease.URL, nil
-}
-
-// GreaterThan compares the current version to a different version
-// returning < 1 not upgradeable
-func GreaterThan(toVer, fromVer string) bool {
-	return semver.Compare(toVer, fromVer) == 1
-}
-
-// GithubUpdate the running binary with the latest release binary from Github
-func GithubUpdate(repo, appName, currentVersion string) (string, error) {
-	ver, filename, downloadURL, err := GithubLatest(repo, appName)
-
-	if err != nil {
-		return "", err
-	}
-
-	if ver == currentVersion {
-		return "", fmt.Errorf("No new release found")
-	}
-
-	if semver.Compare(ver, currentVersion) < 1 {
-		return "", fmt.Errorf("No newer releases found (latest %s)", ver)
-	}
-
-	tmpDir := getTempDir()
-
-	// outFile can be a tar.gz or a zip, depending on architecture
-	outFile := filepath.Join(tmpDir, filename)
-
-	if err := downloadToFile(downloadURL, outFile); err != nil {
-		return "", err
-	}
-
-	newExec := filepath.Join(tmpDir, "mailpit")
-
-	if runtime.GOOS == "windows" {
-		if _, err := Unzip(outFile, tmpDir); err != nil {
-			return "", err
-		}
-		newExec = filepath.Join(tmpDir, "mailpit.exe")
-	} else {
-		if err := TarGZExtract(outFile, tmpDir); err != nil {
-			return "", err
-		}
-	}
-
-	if runtime.GOOS != "windows" {
-		err := os.Chmod(newExec, 0755) // #nosec
-		if err != nil {
-			return "", err
-		}
-	}
-
-	// ensure the new binary is executable (mainly for inconsistent darwin builds)
-	/* #nosec G204 */
-	cmd := exec.Command(newExec, "-h")
-	if err := cmd.Run(); err != nil {
-		return "", err
-	}
-
-	// get the running binary
-	oldExec, err := os.Executable()
-	if err != nil {
-		return "", err
-	}
-
-	if err = replaceFile(oldExec, newExec); err != nil {
-		return "", err
-	}
-
-	return ver, nil
-}
-
-// DownloadToFile downloads a URL to a file
-func downloadToFile(url, fileName string) error {
-	// Get the data
-	resp, err := http.Get(url) // #nosec
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	// Create the file
-	out, err := os.Create(filepath.Clean(fileName))
-	if err != nil {
-		return err
-	}
-
-	defer func() {
-		if err := out.Close(); err != nil {
-			logger.Log().Errorf("error closing file: %s", err.Error())
-		}
-	}()
-
-	// Write the body to file
-	_, err = io.Copy(out, resp.Body)
-
-	return err
-}
-
-// ReplaceFile replaces one file with another.
-// Running files cannot be overwritten, so it has to be moved
-// and the new binary saved to the original path. This requires
-// read & write permissions to both the original file and directory.
-// Note, on Windows it is not possible to delete a running program,
-// so the old exe is renamed and moved to os.TempDir()
-func replaceFile(dst, src string) error {
-	// open the source file for reading
-	source, err := os.Open(filepath.Clean(src))
-	if err != nil {
-		return err
-	}
-
-	// destination directory eg: /usr/local/bin
-	dstDir := filepath.Dir(dst)
-	// binary filename
-	binaryFilename := filepath.Base(dst)
-	// old binary tmp name
-	dstOld := fmt.Sprintf("%s.old", binaryFilename)
-	// new binary tmp name
-	dstNew := fmt.Sprintf("%s.new", binaryFilename)
-	// absolute path of new tmp file
-	newTmpAbs := filepath.Join(dstDir, dstNew)
-	// absolute path of old tmp file
-	oldTmpAbs := filepath.Join(dstDir, dstOld)
-
-	// get src permissions
-	fi, _ := os.Stat(dst)
-	srcPerms := fi.Mode().Perm()
-
-	// create the new file
-	tmpNew, err := os.OpenFile(filepath.Clean(newTmpAbs), os.O_CREATE|os.O_RDWR, srcPerms) // #nosec
-	if err != nil {
-		return err
-	}
-
-	// copy new binary to <binary>.new
-	if _, err := io.Copy(tmpNew, source); err != nil {
-		return err
-	}
-
-	// close immediately else Windows has a fit
-	if err := tmpNew.Close(); err != nil {
-		return err
-	}
-
-	if err := source.Close(); err != nil {
-		return err
-	}
-
-	// rename the current executable to <binary>.old
-	if err := os.Rename(dst, oldTmpAbs); err != nil {
-		return err
-	}
-
-	// rename the <binary>.new to current executable
-	if err := os.Rename(newTmpAbs, dst); err != nil {
-		return err
-	}
-
-	// delete the old binary
-	if runtime.GOOS == "windows" {
-		tmpDir := os.TempDir()
-		delFile := filepath.Join(tmpDir, filepath.Base(oldTmpAbs))
-		if err := os.Rename(oldTmpAbs, delFile); err != nil {
-			return err
-		}
-	} else {
-		if err := os.Remove(oldTmpAbs); err != nil {
-			return err
-		}
-	}
-
-	// remove the src file
-	return os.Remove(src)
-}
-
-// GetTempDir will create & return a temporary directory if one has not been specified
-func getTempDir() string {
-	if tempDir == "" {
-		randBytes := make([]byte, 6)
-		if _, err := rand.Read(randBytes); err != nil {
-			panic(err)
-		}
-		tempDir = filepath.Join(os.TempDir(), "updater-"+hex.EncodeToString(randBytes))
-	}
-	if err := mkDirIfNotExists(tempDir); err != nil {
-		// need a better way to exit
-		logger.Log().Errorf("error: %s", err.Error())
-		os.Exit(2)
-	}
-
-	return tempDir
-}
-
-// MkDirIfNotExists will create a directory if it doesn't exist
-func mkDirIfNotExists(path string) error {
-	if !isDir(path) {
-		return os.MkdirAll(path, os.ModePerm) // #nosec
-	}
-
-	return nil
-}
-
-// IsDir returns if a path is a directory
-func isDir(path string) bool {
-	info, err := os.Stat(path)
-	if os.IsNotExist(err) || !info.IsDir() {
-		return false
-	}
-
-	return true
-}

main.go

@@ -1,3 +1,4 @@
+// Package main is the entrypoint
 package main
 
 import (
@@ -10,25 +11,11 @@ import (
 )
 
 func main() {
-	exec, err := os.Executable()
-	if err != nil {
-		panic(err)
-	}
-
-	// running directly
-	if normalize(filepath.Base(exec)) == normalize(filepath.Base(os.Args[0])) {
-		cmd.Execute()
-	} else {
-		// symlinked
+	// if the command executable contains "send" in the name (eg: sendmail), then run the sendmail command
+	if strings.Contains(strings.ToLower(filepath.Base(os.Args[0])), "send") {
 		sendmail.Run()
+	} else {
+		// else run mailpit
+		cmd.Execute()
 	}
 }
-
-// Normalize returns a lowercase string stripped of the file extension (if exists).
-// Used for detecting Windows commands which ignores letter casing and `.exe`.
-// eg: "MaIlpIT.Exe" returns "mailpit"
-func normalize(s string) string {
-	s = strings.ToLower(s)
-
-	return strings.TrimSuffix(s, filepath.Ext(s))
-}

package.json

@@ -1,25 +1,28 @@
 {
   "name": "mailpit",
   "version": "0.0.0",
+  "type": "module",
   "private": true,
   "scripts": {
     "build": "MINIFY=true node esbuild.config.mjs",
     "watch": "WATCH=true node esbuild.config.mjs",
     "package": "MINIFY=true node esbuild.config.mjs",
-    "update-caniemail": "wget -O utils/html-check/caniemail-data.json https://www.caniemail.com/api/data.json"
+    "update-caniemail": "wget -O internal/htmlcheck/caniemail-data.json https://www.caniemail.com/api/data.json",
+    "lint": "eslint --max-warnings 0 && prettier -c .",
+    "lint-fix": "eslint --fix && prettier --write ."
   },
   "dependencies": {
-    "axios": "^1.2.1",
+    "axios": "^1.11.0",
     "bootstrap": "^5.2.0",
     "bootstrap-icons": "^1.9.1",
     "bootstrap5-tags": "^1.6.1",
     "color-hash": "^2.0.2",
     "dayjs": "^1.11.10",
     "dompurify": "^3.1.6",
+    "highlight.js": "^11.11.1",
     "ical.js": "^2.0.1",
     "mitt": "^3.0.1",
     "modern-screenshot": "^4.4.30",
-    "prismjs": "^1.29.0",
     "rapidoc": "^9.3.4",
     "timezones-list": "^3.0.3",
     "vue": "^3.2.13",
@@ -27,12 +30,22 @@
     "vue-router": "^4.2.4"
   },
   "devDependencies": {
+    "@eslint/compat": "^1.3.1",
     "@popperjs/core": "^2.11.5",
     "@types/bootstrap": "^5.2.7",
     "@types/tinycon": "^0.6.3",
     "@vue/compiler-sfc": "^3.2.37",
-    "esbuild": "^0.24.0",
+    "esbuild": "^0.25.0",
     "esbuild-plugin-vue-next": "^0.1.4",
-    "esbuild-sass-plugin": "^3.0.0"
+    "esbuild-sass-plugin": "^3.0.0",
+    "eslint": "^9.29.0",
+    "eslint-config-prettier": "^10.1.5",
+    "eslint-plugin-vue": "^10.2.0",
+    "prettier": "^3.5.3"
+  },
+  "prettier": {
+    "tabWidth": 4,
+    "useTabs": true,
+    "printWidth": 120
   }
 }

sendmail/cmd/cmd.go

@@ -121,14 +121,14 @@ func Run() {
 	// handles `sendmail -bs`
 	// telnet directly to SMTP
 	if UseB && UseS {
-		var caller telnet.Caller = telnet.StandardCaller
-
-		if isSocket {
+		var caller = telnet.StandardCaller
+		switch isSocket {
+		case true:
 			if err := telnet.DialToAndCallUnix(socketAddr, caller); err != nil {
 				fmt.Println(err)
 				os.Exit(1)
 			}
-		} else {
+		default:
 			if err := telnet.DialToAndCall(SMTPAddr, caller); err != nil {
 				fmt.Println(err)
 				os.Exit(1)

sendmail/cmd/smtp.go

@@ -2,11 +2,14 @@
 package cmd
 
 import (
+	"crypto/tls"
+	"errors"
 	"fmt"
 	"net"
 	"net/mail"
 	"net/smtp"
 	"os"
+	"strings"
 
 	"github.com/axllent/mailpit/internal/logger"
 )
@@ -27,7 +30,7 @@ func Send(addr string, from string, to []string, msg []byte) error {
 	}
 
 	if !isSocket {
-		return smtp.SendMail(addr, nil, fromAddress.Address, to, msg)
+		return sendMail(addr, nil, fromAddress.Address, to, msg)
 	}
 
 	conn, err := net.Dial("unix", socketPath)
@@ -69,3 +72,76 @@ func Send(addr string, from string, to []string, msg []byte) error {
 
 	return nil
 }
+
+func sendMail(addr string, a smtp.Auth, from string, to []string, msg []byte) error {
+	if err := validateLine(from); err != nil {
+		return err
+	}
+
+	for _, recipient := range to {
+		if err := validateLine(recipient); err != nil {
+			return err
+		}
+	}
+
+	c, err := smtp.Dial(addr)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = c.Close() }()
+
+	if err = c.Hello(addr); err != nil {
+		return err
+	}
+
+	if ok, _ := c.Extension("STARTTLS"); ok {
+		config := &tls.Config{ServerName: addr, InsecureSkipVerify: true} // #nosec
+		if err = c.StartTLS(config); err != nil {
+			return err
+		}
+	}
+
+	if a != nil {
+		if ok, _ := c.Extension("AUTH"); !ok {
+			return errors.New("smtp: server doesn't support AUTH")
+		}
+		if err = c.Auth(a); err != nil {
+			return err
+		}
+	}
+
+	if err = c.Mail(from); err != nil {
+		return err
+	}
+
+	for _, addr := range to {
+		if err = c.Rcpt(addr); err != nil {
+			return err
+		}
+	}
+
+	w, err := c.Data()
+	if err != nil {
+		return err
+	}
+
+	_, err = w.Write(msg)
+	if err != nil {
+		return err
+	}
+
+	err = w.Close()
+	if err != nil {
+		return err
+	}
+
+	return c.Quit()
+}
+
+// validateLine checks to see if a line has CR or LF as per RFC 5321.
+func validateLine(line string) error {
+	if strings.ContainsAny(line, "\n\r") {
+		return errors.New("smtp: A line must not contain CR or LF")
+	}
+	return nil
+}

server/apiv1/api.go

@@ -2,699 +2,23 @@
 package apiv1
 
 import (
-	"bytes"
 	"encoding/json"
 	"fmt"
 	"net/http"
-	"net/mail"
 	"strconv"
-	"strings"
 
 	"github.com/araddon/dateparse"
 	"github.com/axllent/mailpit/config"
-	"github.com/axllent/mailpit/internal/htmlcheck"
-	"github.com/axllent/mailpit/internal/linkcheck"
 	"github.com/axllent/mailpit/internal/logger"
-	"github.com/axllent/mailpit/internal/spamassassin"
-	"github.com/axllent/mailpit/internal/storage"
-	"github.com/gorilla/mux"
-	"github.com/jhillyerd/enmime"
 )
 
-// GetMessages returns a paginated list of messages as JSON
-func GetMessages(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/messages messages GetMessages
-	//
-	// # List messages
-	//
-	// Returns messages from the mailbox ordered from newest to oldest.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: start
-	//	    in: query
-	//	    description: Pagination offset
-	//	    required: false
-	//	    type: integer
-	//	    default: 0
-	//	  + name: limit
-	//	    in: query
-	//	    description: Limit results
-	//	    required: false
-	//	    type: integer
-	//	    default: 50
-	//
-	//	Responses:
-	//		200: MessagesSummaryResponse
-	//		default: ErrorResponse
-	start, beforeTS, limit := getStartLimit(r)
-
-	messages, err := storage.List(start, beforeTS, limit)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	stats := storage.StatsGet()
-
-	var res MessagesSummary
-
-	res.Start = start
-	res.Messages = messages
-	res.Count = float64(len(messages)) // legacy - now undocumented in API specs
-	res.Total = stats.Total
-	res.Unread = stats.Unread
-	res.Tags = stats.Tags
-	res.MessagesCount = stats.Total
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(res); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
-// Search returns the latest messages as JSON
-func Search(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/search messages MessagesSummary
-	//
-	// # Search messages
-	//
-	// Returns messages matching [a search](https://mailpit.axllent.org/docs/usage/search-filters/), sorted by received date (descending).
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: query
-	//	    in: query
-	//	    description: Search query
-	//	    required: true
-	//	    type: string
-	//	  + name: start
-	//	    in: query
-	//	    description: Pagination offset
-	//	    required: false
-	//	    type: integer
-	//	    default: 0
-	//	  + name: limit
-	//	    in: query
-	//	    description: Limit results
-	//	    required: false
-	//	    type: integer
-	//	    default: 50
-	//	  + name: tz
-	//	    in: query
-	//	    description: [Timezone identifier](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) used specifically for `before:` & `after:` searches (eg: "Pacific/Auckland").
-	//	    required: false
-	//	    type: string
-	//
-	//	Responses:
-	//		200: MessagesSummaryResponse
-	//		default: ErrorResponse
-	search := strings.TrimSpace(r.URL.Query().Get("query"))
-	if search == "" {
-		httpError(w, "Error: no search query")
-		return
-	}
-
-	start, beforeTS, limit := getStartLimit(r)
-
-	messages, results, err := storage.Search(search, r.URL.Query().Get("tz"), start, beforeTS, limit)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	stats := storage.StatsGet()
-
-	var res MessagesSummary
-
-	res.Start = start
-	res.Messages = messages
-	res.Count = float64(len(messages)) // legacy - now undocumented in API specs
-	res.Total = stats.Total            // total messages in mailbox
-	res.MessagesCount = float64(results)
-	res.Unread = stats.Unread
-	res.Tags = stats.Tags
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(res); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
-// DeleteSearch will delete all messages matching a search
-func DeleteSearch(w http.ResponseWriter, r *http.Request) {
-	// swagger:route DELETE /api/v1/search messages DeleteSearch
-	//
-	// # Delete messages by search
-	//
-	// Delete all messages matching [a search](https://mailpit.axllent.org/docs/usage/search-filters/).
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: query
-	//	    in: query
-	//	    description: Search query
-	//	    required: true
-	//	    type: string
-	//	  + name: tz
-	//	    in: query
-	//	    description: [Timezone identifier](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) used specifically for `before:` & `after:` searches (eg: "Pacific/Auckland").
-	//	    required: false
-	//	    type: string
-	//
-	//	Responses:
-	//		200: OKResponse
-	//		default: ErrorResponse
-	search := strings.TrimSpace(r.URL.Query().Get("query"))
-	if search == "" {
-		httpError(w, "Error: no search query")
-		return
-	}
-
-	if err := storage.DeleteSearch(search, r.URL.Query().Get("tz")); err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	w.Header().Add("Content-Type", "text/plain")
-	_, _ = w.Write([]byte("ok"))
-}
-
-// GetMessage (method: GET) returns the Message as JSON
-func GetMessage(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID} message Message
-	//
-	// # Get message summary
-	//
-	// Returns the summary of a message, marking the message as read.
-	//
-	// The ID can be set to `latest` to return the latest message.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: ID
-	//	    in: path
-	//	    description: Message database ID or "latest"
-	//	    required: true
-	//	    type: string
-	//
-	//	Responses:
-	//		200: Message
-	//		default: ErrorResponse
-
-	vars := mux.Vars(r)
-
-	id := vars["id"]
-
-	if id == "latest" {
-		var err error
-		id, err = storage.LatestID(r)
-		if err != nil {
-			w.WriteHeader(404)
-			fmt.Fprint(w, err.Error())
-			return
-		}
-	}
-
-	msg, err := storage.GetMessage(id)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(msg); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
-// DownloadAttachment (method: GET) returns the attachment data
-func DownloadAttachment(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID}/part/{PartID} message Attachment
-	//
-	// # Get message attachment
-	//
-	// This will return the attachment part using the appropriate Content-Type.
-	//
-	//	Produces:
-	//	- application/*
-	//	- image/*
-	//	- text/*
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: ID
-	//	    in: path
-	//	    description: Message database ID
-	//	    required: true
-	//	    type: string
-	//	  + name: PartID
-	//	    in: path
-	//	    description: Attachment part ID
-	//	    required: true
-	//	    type: string
-	//
-	//	Responses:
-	//		200: BinaryResponse
-	//		default: ErrorResponse
-
-	vars := mux.Vars(r)
-
-	id := vars["id"]
-	partID := vars["partID"]
-
-	a, err := storage.GetAttachmentPart(id, partID)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-	fileName := a.FileName
-	if fileName == "" {
-		fileName = a.ContentID
-	}
-
-	w.Header().Add("Content-Type", a.ContentType)
-	w.Header().Set("Content-Disposition", "filename=\""+fileName+"\"")
-	_, _ = w.Write(a.Content)
-}
-
-// GetHeaders (method: GET) returns the message headers as JSON
-func GetHeaders(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID}/headers message Headers
-	//
-	// # Get message headers
-	//
-	// Returns the message headers as an array.
-	//
-	// The ID can be set to `latest` to return the latest message headers.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: ID
-	//	    in: path
-	//	    description: Message database ID or "latest"
-	//	    required: true
-	//	    type: string
-	//
-	//	Responses:
-	//	  200: MessageHeaders
-	//	  default: ErrorResponse
-
-	vars := mux.Vars(r)
-
-	id := vars["id"]
-
-	if id == "latest" {
-		var err error
-		id, err = storage.LatestID(r)
-		if err != nil {
-			w.WriteHeader(404)
-			fmt.Fprint(w, err.Error())
-			return
-		}
-	}
-
-	data, err := storage.GetMessageRaw(id)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-
-	reader := bytes.NewReader(data)
-	m, err := mail.ReadMessage(reader)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(m.Header); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
-// DownloadRaw (method: GET) returns the full email source as plain text
-func DownloadRaw(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID}/raw message Raw
-	//
-	// # Get message source
-	//
-	// Returns the full email source as plain text.
-	//
-	// The ID can be set to `latest` to return the latest message source.
-	//
-	//	Produces:
-	//	- text/plain
-	//
-	//	Schemes: http, https
-	//
-	//	Parameters:
-	//	  + name: ID
-	//	    in: path
-	//	    description: Message database ID or "latest"
-	//	    required: true
-	//	    type: string
-	//
-	//	Responses:
-	//		200: TextResponse
-	//		default: ErrorResponse
-
-	vars := mux.Vars(r)
-
-	id := vars["id"]
-	dl := r.FormValue("dl")
-
-	if id == "latest" {
-		var err error
-		id, err = storage.LatestID(r)
-		if err != nil {
-			w.WriteHeader(404)
-			fmt.Fprint(w, err.Error())
-			return
-		}
-	}
-
-	data, err := storage.GetMessageRaw(id)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-
-	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
-	if dl == "1" {
-		w.Header().Set("Content-Disposition", "attachment; filename=\""+id+".eml\"")
-	}
-	_, _ = w.Write(data)
-}
-
-// DeleteMessages (method: DELETE) deletes all messages matching IDS.
-func DeleteMessages(w http.ResponseWriter, r *http.Request) {
-	// swagger:route DELETE /api/v1/messages messages DeleteMessages
-	//
-	// # Delete messages
-	//
-	// Delete individual or all messages. If no IDs are provided then all messages are deleted.
-	//
-	//	Consumes:
-	//	- application/json
-	//
-	//	Produces:
-	//	- text/plain
-	//
-	//	Schemes: http, https
-	//
-	//	Responses:
-	//		200: OKResponse
-	//		default: ErrorResponse
-
-	decoder := json.NewDecoder(r.Body)
-	var data struct {
-		IDs []string
-	}
-	err := decoder.Decode(&data)
-	if err != nil || len(data.IDs) == 0 {
-		if err := storage.DeleteAllMessages(); err != nil {
-			httpError(w, err.Error())
-			return
-		}
-	} else {
-		if err := storage.DeleteMessages(data.IDs); err != nil {
-			httpError(w, err.Error())
-			return
-		}
-	}
-
-	w.Header().Add("Content-Type", "text/plain")
-	_, _ = w.Write([]byte("ok"))
-}
-
-// SetReadStatus (method: PUT) will update the status to Read/Unread for all provided IDs
-// If no IDs are provided then all messages are updated.
-func SetReadStatus(w http.ResponseWriter, r *http.Request) {
-	// swagger:route PUT /api/v1/messages messages SetReadStatus
-	//
-	// # Set read status
-	//
-	// If no IDs are provided then all messages are updated.
-	//
-	//	Consumes:
-	//	- application/json
-	//
-	//	Produces:
-	//	- text/plain
-	//
-	//	Schemes: http, https
-	//
-	//	Responses:
-	//		200: OKResponse
-	//		default: ErrorResponse
-
-	decoder := json.NewDecoder(r.Body)
-
-	var data struct {
-		Read bool
-		IDs  []string
-	}
-
-	err := decoder.Decode(&data)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	ids := data.IDs
-
-	if len(ids) == 0 {
-		if data.Read {
-			err := storage.MarkAllRead()
-			if err != nil {
-				httpError(w, err.Error())
-				return
-			}
-		} else {
-			err := storage.MarkAllUnread()
-			if err != nil {
-				httpError(w, err.Error())
-				return
-			}
-		}
-	} else {
-		if data.Read {
-			for _, id := range ids {
-				if err := storage.MarkRead(id); err != nil {
-					httpError(w, err.Error())
-					return
-				}
-			}
-		} else {
-			for _, id := range ids {
-				if err := storage.MarkUnread(id); err != nil {
-					httpError(w, err.Error())
-					return
-				}
-			}
-		}
-	}
-
-	w.Header().Add("Content-Type", "text/plain")
-	_, _ = w.Write([]byte("ok"))
-}
-
-// HTMLCheck returns a summary of the HTML client support
-func HTMLCheck(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID}/html-check Other HTMLCheck
-	//
-	// # HTML check
-	//
-	// Returns the summary of the message HTML checker.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Responses:
-	//		200: HTMLCheckResponse
-	//		default: ErrorResponse
-
-	vars := mux.Vars(r)
-	id := vars["id"]
-
-	if id == "latest" {
-		var err error
-		id, err = storage.LatestID(r)
-		if err != nil {
-			w.WriteHeader(404)
-			fmt.Fprint(w, err.Error())
-			return
-		}
-	}
-
-	raw, err := storage.GetMessageRaw(id)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-
-	e := bytes.NewReader(raw)
-
-	parser := enmime.NewParser(enmime.DisableCharacterDetection(true))
-
-	msg, err := parser.ReadEnvelope(e)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	if msg.HTML == "" {
-		httpError(w, "message does not contain HTML")
-		return
-	}
-
-	checks, err := htmlcheck.RunTests(msg.HTML)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(checks); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
-// LinkCheck returns a summary of links in the email
-func LinkCheck(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID}/link-check Other LinkCheck
-	//
-	// # Link check
-	//
-	// Returns the summary of the message Link checker.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Responses:
-	//		200: LinkCheckResponse
-	//		default: ErrorResponse
-
-	if config.DemoMode {
-		httpError(w, "this functionality has been disabled for demonstration purposes")
-		return
-	}
-
-	vars := mux.Vars(r)
-	id := vars["id"]
-
-	if id == "latest" {
-		var err error
-		id, err = storage.LatestID(r)
-		if err != nil {
-			w.WriteHeader(404)
-			fmt.Fprint(w, err.Error())
-			return
-		}
-	}
-
-	msg, err := storage.GetMessage(id)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-
-	f := r.URL.Query().Get("follow")
-	followRedirects := f == "true" || f == "1"
-
-	summary, err := linkcheck.RunTests(msg, followRedirects)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(summary); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
-// SpamAssassinCheck returns a summary of SpamAssassin results (if enabled)
-func SpamAssassinCheck(w http.ResponseWriter, r *http.Request) {
-	// swagger:route GET /api/v1/message/{ID}/sa-check Other SpamAssassinCheck
-	//
-	// # SpamAssassin check
-	//
-	// Returns the SpamAssassin summary (if enabled) of the message.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Responses:
-	//		200: SpamAssassinResponse
-	//		default: ErrorResponse
-
-	vars := mux.Vars(r)
-	id := vars["id"]
-
-	if id == "latest" {
-		var err error
-		id, err = storage.LatestID(r)
-		if err != nil {
-			w.WriteHeader(404)
-			fmt.Fprint(w, err.Error())
-			return
-		}
-	}
-
-	msg, err := storage.GetMessageRaw(id)
-	if err != nil {
-		fourOFour(w)
-		return
-	}
-
-	summary, err := spamassassin.Check(msg)
-	if err != nil {
-		httpError(w, err.Error())
-		return
-	}
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(summary); err != nil {
-		httpError(w, err.Error())
-	}
-}
-
 // FourOFour returns a basic 404 message
 func fourOFour(w http.ResponseWriter) {
 	w.Header().Set("Referrer-Policy", "no-referrer")
 	w.Header().Set("Content-Security-Policy", config.ContentSecurityPolicy)
 	w.WriteHeader(http.StatusNotFound)
 	w.Header().Set("Content-Type", "text/plain")
-	fmt.Fprint(w, "404 page not found")
+	_, _ = fmt.Fprint(w, "404 page not found")
 }
 
 // HTTPError returns a basic error message (400 response)
@@ -703,7 +27,7 @@ func httpError(w http.ResponseWriter, msg string) {
 	w.Header().Set("Content-Security-Policy", config.ContentSecurityPolicy)
 	w.WriteHeader(http.StatusBadRequest)
 	w.Header().Set("Content-Type", "text/plain")
-	fmt.Fprint(w, msg)
+	_, _ = fmt.Fprint(w, msg)
 }
 
 // httpJSONError returns a basic error message (400 response) in JSON format
@@ -711,9 +35,7 @@ func httpJSONError(w http.ResponseWriter, msg string) {
 	w.Header().Set("Referrer-Policy", "no-referrer")
 	w.Header().Set("Content-Security-Policy", config.ContentSecurityPolicy)
 	w.WriteHeader(http.StatusBadRequest)
-	e := JSONErrorMessage{
-		Error: msg,
-	}
+	e := struct{ Error string }{Error: msg}
 
 	w.Header().Add("Content-Type", "application/json")
 	if err := json.NewEncoder(w).Encode(e); err != nil {
@@ -733,7 +55,7 @@ func getStartLimit(req *http.Request) (start int, beforeTS int64, limit int) {
 	}
 
 	l := req.URL.Query().Get("limit")
-	if n, err := strconv.Atoi(l); err == nil && n > 0 {
+	if n, err := strconv.Atoi(l); err == nil && n > -1 {
 		limit = n
 	}
 

server/apiv1/application.go

@@ -0,0 +1,79 @@
+package apiv1
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
+	"github.com/axllent/mailpit/internal/stats"
+)
+
+// AppInfo returns some basic details about the running app including the latest release (unless disabled).
+func AppInfo(w http.ResponseWriter, _ *http.Request) {
+	// swagger:route GET /api/v1/info application AppInformation
+	//
+	// # Get application information
+	//
+	// Returns basic runtime information, message totals and latest release version.
+	//
+	//	Produces:
+	//	- application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//		200: AppInfoResponse
+	//		400: ErrorResponse
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(stats.Load(true)); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// WebUIConfig returns configuration settings for the web UI.
+func WebUIConfig(w http.ResponseWriter, _ *http.Request) {
+	// swagger:route GET /api/v1/webui application WebUIConfigurationResponse
+	//
+	// # Get web UI configuration
+	//
+	// Returns configuration settings for the web UI.
+	// Intended for web UI only!
+	//
+	//	Produces:
+	//	 - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: WebUIConfigurationResponse
+	//	  400: ErrorResponse
+
+	conf := webUIConfigurationResponse{}
+
+	conf.Body.Label = config.Label
+	conf.Body.MessageRelay.Enabled = config.ReleaseEnabled
+	if config.ReleaseEnabled {
+		conf.Body.MessageRelay.SMTPServer = fmt.Sprintf("%s:%d", config.SMTPRelayConfig.Host, config.SMTPRelayConfig.Port)
+		conf.Body.MessageRelay.ReturnPath = config.SMTPRelayConfig.ReturnPath
+		conf.Body.MessageRelay.AllowedRecipients = config.SMTPRelayConfig.AllowedRecipients
+		conf.Body.MessageRelay.BlockedRecipients = config.SMTPRelayConfig.BlockedRecipients
+		conf.Body.MessageRelay.OverrideFrom = config.SMTPRelayConfig.OverrideFrom
+		conf.Body.MessageRelay.PreserveMessageIDs = config.SMTPRelayConfig.PreserveMessageIDs
+
+		// DEPRECATED 2024/03/12
+		conf.Body.MessageRelay.RecipientAllowlist = config.SMTPRelayConfig.AllowedRecipients
+	}
+
+	conf.Body.SpamAssassin = config.EnableSpamAssassin != ""
+	conf.Body.ChaosEnabled = chaos.Enabled
+	conf.Body.DuplicatesIgnored = config.IgnoreDuplicateIDs
+	conf.Body.HideDeleteAllButton = config.HideDeleteAllButton
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(conf.Body); err != nil {
+		httpError(w, err.Error())
+	}
+}

server/apiv1/chaos.go

@@ -0,0 +1,92 @@
+package apiv1
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
+)
+
+// GetChaos returns the current Chaos triggers
+func GetChaos(w http.ResponseWriter, _ *http.Request) {
+	// swagger:route GET /api/v1/chaos testing getChaos
+	//
+	// # Get Chaos triggers
+	//
+	// Returns the current Chaos triggers configuration.
+	// This API route will return an error if Chaos is not enabled at runtime.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: ChaosResponse
+	//	  400: ErrorResponse
+
+	if !chaos.Enabled {
+		httpError(w, "Chaos is not enabled")
+		return
+	}
+
+	conf := chaos.Config
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(conf); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// SetChaos sets the Chaos configuration.
+func SetChaos(w http.ResponseWriter, r *http.Request) {
+	// swagger:route PUT /api/v1/chaos testing setChaosParams
+	//
+	// # Set Chaos triggers
+	//
+	// Set the Chaos triggers configuration and return the updated values.
+	// This API route will return an error if Chaos is not enabled at runtime.
+	//
+	// If any triggers are omitted from the request, then those are reset to their
+	// default values with a 0% probability (ie: disabled).
+	// Setting a blank `{}` will reset all triggers to their default values.
+	//
+	//	Consumes:
+	//	  - application/json
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: ChaosResponse
+	//	  400: ErrorResponse
+
+	if !chaos.Enabled {
+		httpError(w, "Chaos is not enabled")
+		return
+	}
+
+	data := chaos.Triggers{}
+
+	decoder := json.NewDecoder(r.Body)
+
+	err := decoder.Decode(&data)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	if err := chaos.SetFromStruct(data); err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	conf := chaos.Config
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(conf); err != nil {
+		httpError(w, err.Error())
+	}
+}

server/apiv1/info.go

@@ -1,31 +0,0 @@
-package apiv1
-
-import (
-	"encoding/json"
-	"net/http"
-
-	"github.com/axllent/mailpit/internal/stats"
-)
-
-// AppInfo returns some basic details about the running app, and latest release.
-func AppInfo(w http.ResponseWriter, _ *http.Request) {
-	// swagger:route GET /api/v1/info application AppInformation
-	//
-	// # Get application information
-	//
-	// Returns basic runtime information, message totals and latest release version.
-	//
-	//	Produces:
-	//	- application/json
-	//
-	//	Schemes: http, https
-	//
-	//	Responses:
-	//		200: InfoResponse
-	//		default: ErrorResponse
-
-	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(stats.Load()); err != nil {
-		httpError(w, err.Error())
-	}
-}

server/apiv1/message.go

@@ -0,0 +1,211 @@
+package apiv1
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/mail"
+
+	"github.com/axllent/mailpit/internal/storage"
+	"github.com/gorilla/mux"
+)
+
+// GetMessage (method: GET) returns the Message as JSON
+func GetMessage(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID} message GetMessageParams
+	//
+	// # Get message summary
+	//
+	// Returns the summary of a message, marking the message as read.
+	//
+	// The ID can be set to `latest` to return the latest message.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: Message
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	vars := mux.Vars(r)
+
+	id := vars["id"]
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			w.WriteHeader(404)
+			_, _ = fmt.Fprint(w, err.Error())
+			return
+		}
+	}
+
+	msg, err := storage.GetMessage(id)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(msg); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// GetHeaders (method: GET) returns the message headers as JSON
+func GetHeaders(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID}/headers message GetHeadersParams
+	//
+	// # Get message headers
+	//
+	// Returns the message headers as an array. Note that header keys are returned alphabetically.
+	//
+	// The ID can be set to `latest` to return the latest message headers.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: MessageHeadersResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	vars := mux.Vars(r)
+
+	id := vars["id"]
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			w.WriteHeader(404)
+			_, _ = fmt.Fprint(w, err.Error())
+			return
+		}
+	}
+
+	data, err := storage.GetMessageRaw(id)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+
+	reader := bytes.NewReader(data)
+	m, err := mail.ReadMessage(reader)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(m.Header); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// DownloadAttachment (method: GET) returns the attachment data
+func DownloadAttachment(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID}/part/{PartID} message AttachmentParams
+	//
+	// # Get message attachment
+	//
+	// This will return the attachment part using the appropriate Content-Type.
+	//
+	// The ID can be set to `latest` to reference the latest message.
+	//
+	//	Produces:
+	//	  - application/*
+	//	  - image/*
+	//	  - text/*
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: BinaryResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	vars := mux.Vars(r)
+
+	id := vars["id"]
+	partID := vars["partID"]
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			w.WriteHeader(404)
+			_, _ = fmt.Fprint(w, err.Error())
+			return
+		}
+	}
+
+	a, err := storage.GetAttachmentPart(id, partID)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+	fileName := a.FileName
+	if fileName == "" {
+		fileName = a.ContentID
+	}
+
+	w.Header().Add("Content-Type", a.ContentType)
+	w.Header().Set("Content-Disposition", "filename=\""+fileName+"\"")
+	_, _ = w.Write(a.Content)
+}
+
+// DownloadRaw (method: GET) returns the full email source as plain text
+func DownloadRaw(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID}/raw message DownloadRawParams
+	//
+	// # Get message source
+	//
+	// Returns the full email source as plain text.
+	//
+	// The ID can be set to `latest` to return the latest message source.
+	//
+	//	Produces:
+	//	  - text/plain
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: TextResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	vars := mux.Vars(r)
+
+	id := vars["id"]
+	dl := r.FormValue("dl")
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			w.WriteHeader(404)
+			_, _ = fmt.Fprint(w, err.Error())
+			return
+		}
+	}
+
+	data, err := storage.GetMessageRaw(id)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	if dl == "1" {
+		w.Header().Set("Content-Disposition", "attachment; filename=\""+id+".eml\"")
+	}
+	_, _ = w.Write(data)
+}

server/apiv1/messages.go

@@ -0,0 +1,295 @@
+package apiv1
+
+import (
+	"encoding/json"
+	"net/http"
+	"strings"
+
+	"github.com/axllent/mailpit/internal/storage"
+	"github.com/axllent/mailpit/internal/tools"
+)
+
+// MessagesSummary is a summary of a list of messages
+type MessagesSummary struct {
+	// Total number of messages in mailbox
+	Total uint64 `json:"total"`
+
+	// Total number of unread messages in mailbox
+	Unread uint64 `json:"unread"`
+
+	// Legacy - now undocumented in API specs but left for backwards compatibility.
+	// Removed from API documentation 2023-07-12
+	// swagger:ignore
+	Count uint64 `json:"count"`
+
+	// Total number of messages matching current query
+	MessagesCount uint64 `json:"messages_count"`
+
+	// Total number of unread messages matching current query
+	MessagesUnreadCount uint64 `json:"messages_unread"`
+
+	// Pagination offset
+	Start int `json:"start"`
+
+	// All current tags
+	Tags []string `json:"tags"`
+
+	// Messages summary
+	// in: body
+	Messages []storage.MessageSummary `json:"messages"`
+}
+
+// GetMessages returns a paginated list of messages as JSON
+func GetMessages(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/messages messages GetMessagesParams
+	//
+	// # List messages
+	//
+	// Returns messages from the mailbox ordered from newest to oldest.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: MessagesSummaryResponse
+	//    400: ErrorResponse
+
+	start, beforeTS, limit := getStartLimit(r)
+
+	messages, err := storage.List(start, beforeTS, limit)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	stats := storage.StatsGet()
+
+	var res MessagesSummary
+
+	res.Start = start
+	res.Messages = messages
+	res.Count = uint64(len(messages)) // legacy - now undocumented in API specs
+	res.Total = stats.Total
+	res.Unread = stats.Unread
+	res.Tags = stats.Tags
+	res.MessagesCount = stats.Total
+	res.MessagesUnreadCount = stats.Unread
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(res); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// SetReadStatus (method: PUT) will update the status to Read/Unread for all provided IDs.
+func SetReadStatus(w http.ResponseWriter, r *http.Request) {
+	// swagger:route PUT /api/v1/messages messages SetReadStatusParams
+	//
+	// # Set read status
+	//
+	// You can optionally provide an array of IDs or a search string.
+	// If neither IDs nor search is provided then all mailbox messages are updated.
+	//
+	//	Consumes:
+	//	  - application/json
+	//
+	//	Produces:
+	//	  - text/plain
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: OKResponse
+	//    400: ErrorResponse
+
+	decoder := json.NewDecoder(r.Body)
+
+	var data struct {
+		Read   bool
+		IDs    []string
+		Search string
+	}
+
+	err := decoder.Decode(&data)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	ids := data.IDs
+	search := data.Search
+
+	if len(ids) > 0 && search != "" {
+		httpError(w, "You may specify either IDs or a search query, not both")
+		return
+	}
+
+	if search != "" {
+		err := storage.SetSearchReadStatus(search, r.URL.Query().Get("tz"), data.Read)
+		if err != nil {
+			httpError(w, err.Error())
+			return
+		}
+	} else if len(ids) == 0 {
+		if data.Read {
+			err := storage.MarkAllRead()
+			if err != nil {
+				httpError(w, err.Error())
+				return
+			}
+		} else {
+			err := storage.MarkAllUnread()
+			if err != nil {
+				httpError(w, err.Error())
+				return
+			}
+		}
+	} else {
+		if data.Read {
+			if err := storage.MarkRead(ids); err != nil {
+				httpError(w, err.Error())
+				return
+			}
+		} else {
+			if err := storage.MarkUnread(ids); err != nil {
+				httpError(w, err.Error())
+				return
+			}
+		}
+	}
+
+	w.Header().Add("Content-Type", "text/plain")
+	_, _ = w.Write([]byte("ok"))
+}
+
+// DeleteMessages (method: DELETE) deletes all messages matching IDS.
+func DeleteMessages(w http.ResponseWriter, r *http.Request) {
+	// swagger:route DELETE /api/v1/messages messages DeleteMessagesParams
+	//
+	// # Delete messages
+	//
+	// Delete individual or all messages. If no IDs are provided then all messages are deleted.
+	//
+	//	Consumes:
+	//	  - application/json
+	//
+	//	Produces:
+	//	  - text/plain
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: OKResponse
+	//    400: ErrorResponse
+
+	decoder := json.NewDecoder(r.Body)
+	var data struct {
+		IDs []string
+	}
+	err := decoder.Decode(&data)
+	if err != nil || len(data.IDs) == 0 {
+		if err := storage.DeleteAllMessages(); err != nil {
+			httpError(w, err.Error())
+			return
+		}
+	} else {
+		if err := storage.DeleteMessages(data.IDs); err != nil {
+			httpError(w, err.Error())
+			return
+		}
+	}
+
+	w.Header().Add("Content-Type", "text/plain")
+	_, _ = w.Write([]byte("ok"))
+}
+
+// Search returns the latest messages as JSON
+func Search(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/search messages SearchParams
+	//
+	// # Search messages
+	//
+	// Returns messages matching [a search](https://mailpit.axllent.org/docs/usage/search-filters/), sorted by received date (descending).
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: MessagesSummaryResponse
+	//    400: ErrorResponse
+
+	search := strings.TrimSpace(r.URL.Query().Get("query"))
+	if search == "" {
+		httpError(w, "Error: no search query")
+		return
+	}
+
+	start, beforeTS, limit := getStartLimit(r)
+
+	messages, results, err := storage.Search(search, r.URL.Query().Get("tz"), start, beforeTS, limit)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	stats := storage.StatsGet()
+
+	var res MessagesSummary
+
+	res.Start = start
+	res.Messages = messages
+	res.Count = tools.SafeUint64(len(messages)) // legacy - now undocumented in API specs
+	res.Total = stats.Total                     // total messages in mailbox
+	res.MessagesCount = tools.SafeUint64(results)
+	res.Unread = stats.Unread
+	res.Tags = stats.Tags
+
+	unread, err := storage.SearchUnreadCount(search, r.URL.Query().Get("tz"), beforeTS)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	res.MessagesUnreadCount = tools.SafeUint64(unread)
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(res); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// DeleteSearch will delete all messages matching a search
+func DeleteSearch(w http.ResponseWriter, r *http.Request) {
+	// swagger:route DELETE /api/v1/search messages DeleteSearchParams
+	//
+	// # Delete messages by search
+	//
+	// Delete all messages matching [a search](https://mailpit.axllent.org/docs/usage/search-filters/).
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: OKResponse
+	//    400: ErrorResponse
+
+	search := strings.TrimSpace(r.URL.Query().Get("query"))
+	if search == "" {
+		httpError(w, "Error: no search query")
+		return
+	}
+
+	if err := storage.DeleteSearch(search, r.URL.Query().Get("tz")); err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	w.Header().Add("Content-Type", "text/plain")
+	_, _ = w.Write([]byte("ok"))
+}

server/apiv1/other.go

@@ -0,0 +1,190 @@
+package apiv1
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/htmlcheck"
+	"github.com/axllent/mailpit/internal/linkcheck"
+	"github.com/axllent/mailpit/internal/spamassassin"
+	"github.com/axllent/mailpit/internal/storage"
+	"github.com/gorilla/mux"
+	"github.com/jhillyerd/enmime/v2"
+)
+
+// HTMLCheck returns a summary of the HTML client support
+func HTMLCheck(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID}/html-check other HTMLCheckParams
+	//
+	// # HTML check
+	//
+	// Returns the summary of the message HTML checker.
+	//
+	// The ID can be set to `latest` to return the latest message.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: HTMLCheckResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	vars := mux.Vars(r)
+	id := vars["id"]
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			fourOFour(w)
+			return
+		}
+	}
+
+	raw, err := storage.GetMessageRaw(id)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+
+	e := bytes.NewReader(raw)
+
+	parser := enmime.NewParser(enmime.DisableCharacterDetection(true))
+
+	msg, err := parser.ReadEnvelope(e)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	if msg.HTML == "" {
+		httpError(w, "message does not contain HTML")
+		return
+	}
+
+	checks, err := htmlcheck.RunTests(msg.HTML)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(checks); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// LinkCheck returns a summary of links in the email
+func LinkCheck(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID}/link-check other LinkCheckParams
+	//
+	// # Link check
+	//
+	// Returns the summary of the message Link checker.
+	//
+	// The ID can be set to `latest` to return the latest message.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: LinkCheckResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	if config.DemoMode {
+		httpError(w, "this functionality has been disabled for demonstration purposes")
+		return
+	}
+
+	vars := mux.Vars(r)
+	id := vars["id"]
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			fourOFour(w)
+			return
+		}
+	}
+
+	msg, err := storage.GetMessage(id)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+
+	f := r.URL.Query().Get("follow")
+	followRedirects := f == "true" || f == "1"
+
+	summary, err := linkcheck.RunTests(msg, followRedirects)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(summary); err != nil {
+		httpError(w, err.Error())
+	}
+}
+
+// SpamAssassinCheck returns a summary of SpamAssassin results (if enabled)
+func SpamAssassinCheck(w http.ResponseWriter, r *http.Request) {
+	// swagger:route GET /api/v1/message/{ID}/sa-check other SpamAssassinCheckParams
+	//
+	// # SpamAssassin check
+	//
+	// Returns the SpamAssassin summary (if enabled) of the message.
+	//
+	// The ID can be set to `latest` to return the latest message.
+	//
+	//	Produces:
+	//	  - application/json
+	//
+	//	Schemes: http, https
+	//
+	//	Responses:
+	//	  200: SpamAssassinResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
+
+	vars := mux.Vars(r)
+	id := vars["id"]
+
+	if id == "latest" {
+		var err error
+		id, err = storage.LatestID(r)
+		if err != nil {
+			w.WriteHeader(404)
+			_, _ = fmt.Fprint(w, err.Error())
+			return
+		}
+	}
+
+	msg, err := storage.GetMessageRaw(id)
+	if err != nil {
+		fourOFour(w)
+		return
+	}
+
+	summary, err := spamassassin.Check(msg)
+	if err != nil {
+		httpError(w, err.Error())
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(summary); err != nil {
+		httpError(w, err.Error())
+	}
+}

server/apiv1/release.go

@@ -10,32 +10,35 @@ import (
 
 	"github.com/axllent/mailpit/config"
 	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/smtpd"
 	"github.com/axllent/mailpit/internal/storage"
 	"github.com/axllent/mailpit/internal/tools"
-	"github.com/axllent/mailpit/server/smtpd"
 	"github.com/gorilla/mux"
 	"github.com/lithammer/shortuuid/v4"
 )
 
 // ReleaseMessage (method: POST) will release a message via a pre-configured external SMTP server.
 func ReleaseMessage(w http.ResponseWriter, r *http.Request) {
-	// swagger:route POST /api/v1/message/{ID}/release message ReleaseMessage
+	// swagger:route POST /api/v1/message/{ID}/release message ReleaseMessageParams
 	//
 	// # Release message
 	//
 	// Release a message via a pre-configured external SMTP server. This is only enabled if message relaying has been configured.
 	//
+	// The ID can be set to `latest` to reference the latest message.
+	//
 	//	Consumes:
-	//	- application/json
+	//	  - application/json
 	//
 	//	Produces:
-	//	- text/plain
+	//	  - text/plain
 	//
 	//	Schemes: http, https
 	//
 	//	Responses:
-	//		200: OKResponse
-	//		default: ErrorResponse
+	//	  200: OKResponse
+	//    400: ErrorResponse
+	//    404: NotFoundResponse
 
 	if config.DemoMode {
 		httpError(w, "this functionality has been disabled for demonstration purposes")
@@ -54,7 +57,9 @@ func ReleaseMessage(w http.ResponseWriter, r *http.Request) {
 
 	decoder := json.NewDecoder(r.Body)
 
-	data := releaseMessageRequestBody{}
+	var data struct {
+		To []string
+	}
 
 	if err := decoder.Decode(&data); err != nil {
 		httpError(w, err.Error())
@@ -109,7 +114,7 @@ func ReleaseMessage(w http.ResponseWriter, r *http.Request) {
 
 	fromAddresses, err := m.Header.AddressList("From")
 	if err != nil {
-		httpError(w, err.Error())
+		httpError(w, "Failed: unable to parse From header: "+err.Error())
 		return
 	}
 
@@ -146,19 +151,20 @@ func ReleaseMessage(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// update message date
-	msg, err = tools.UpdateMessageHeader(msg, "Date", time.Now().Format(time.RFC1123Z))
+	msg, err = tools.SetMessageHeader(msg, "Date", time.Now().Format(time.RFC1123Z))
 	if err != nil {
 		httpError(w, err.Error())
 		return
 	}
 
-	// generate unique ID
-	uid := shortuuid.New() + "@mailpit"
-	// update Message-Id with unique ID
-	msg, err = tools.UpdateMessageHeader(msg, "Message-Id", "<"+uid+">")
-	if err != nil {
-		httpError(w, err.Error())
-		return
+	if !config.SMTPRelayConfig.PreserveMessageIDs {
+		// replace the Message-ID header with unique ID
+		uid := shortuuid.New() + "@mailpit"
+		msg, err = tools.SetMessageHeader(msg, "Message-ID", "<"+uid+">")
+		if err != nil {
+			httpError(w, err.Error())
+			return
+		}
 	}
 
 	if err := smtpd.Relay(from, data.To, msg); err != nil {

server/apiv1/send.go

@@ -12,135 +12,30 @@ import (
 	"strings"
 
 	"github.com/axllent/mailpit/config"
+	"github.com/axllent/mailpit/internal/smtpd"
 	"github.com/axllent/mailpit/internal/tools"
-	"github.com/axllent/mailpit/server/smtpd"
-	"github.com/jhillyerd/enmime"
+	"github.com/jhillyerd/enmime/v2"
 )
 
-// swagger:parameters SendMessage
-type sendMessageParams struct {
-	// in: body
-	Body *SendRequest
-}
-
-// SendRequest to send a message via HTTP
-// swagger:model SendRequest
-type SendRequest struct {
-	// "From" recipient
-	// required: true
-	From struct {
-		// Optional name
-		// example: John Doe
-		Name string
-		// Email address
-		// example: john@example.com
-		// required: true
-		Email string
-	}
-
-	// "To" recipients
-	To []struct {
-		// Optional name
-		// example: Jane Doe
-		Name string
-		// Email address
-		// example: jane@example.com
-		// required: true
-		Email string
-	}
-
-	// Cc recipients
-	Cc []struct {
-		// Optional name
-		// example: Manager
-		Name string
-		// Email address
-		// example: manager@example.com
-		// required: true
-		Email string
-	}
-
-	// Bcc recipients email addresses only
-	// example: ["jack@example.com"]
-	Bcc []string
-
-	// Optional Reply-To recipients
-	ReplyTo []struct {
-		// Optional name
-		// example: Secretary
-		Name string
-		// Email address
-		// example: secretary@example.com
-		// required: true
-		Email string
-	}
-
-	// Subject
-	// example: Mailpit message via the HTTP API
-	Subject string
-
-	// Message body (text)
-	// example: This is the text body
-	Text string
-
-	// Message body (HTML)
-	// example: <p style="font-family: arial">Mailpit is <b>awesome</b>!</p>
-	HTML string
-
-	// Attachments
-	Attachments []struct {
-		// Base64-encoded string of the file content
-		// required: true
-		// example: VGhpcyBpcyBhIHBsYWluIHRleHQgYXR0YWNobWVudA==
-		Content string
-		// Filename
-		// required: true
-		// example: AttachedFile.txt
-		Filename string
-	}
-
-	// Mailpit tags
-	// example: ["Tag 1","Tag 2"]
-	Tags []string
-
-	// Optional headers in {"key":"value"} format
-	// example: {"X-IP":"1.2.3.4"}
-	Headers map[string]string
-}
-
-// SendMessageConfirmation struct
-type SendMessageConfirmation struct {
-	// Database ID
-	// example: iAfZVVe2UQFNSG5BAjgYwa
-	ID string
-}
-
-// JSONErrorMessage struct
-type JSONErrorMessage struct {
-	// Error message
-	// example: invalid format
-	Error string
-}
-
 // SendMessageHandler handles HTTP requests to send a new message
 func SendMessageHandler(w http.ResponseWriter, r *http.Request) {
-	// swagger:route POST /api/v1/send message SendMessage
+	// swagger:route POST /api/v1/send message SendMessageParams
 	//
 	// # Send a message
 	//
 	// Send a message via the HTTP API.
 	//
 	//	Consumes:
-	//	- application/json
+	//	  - application/json
 	//
 	//	Produces:
-	//	- application/json
+	//	  - application/json
 	//
 	//	Schemes: http, https
 	//
 	//	Responses:
-	//		200: sendMessageResponse
-	//		default: jsonErrorResponse
+	//	  200: SendMessageResponse
+	//	  400: JSONErrorResponse
 
 	if config.DemoMode {
 		httpJSONError(w, "this functionality has been disabled for demonstration purposes")
@@ -149,14 +44,19 @@ func SendMessageHandler(w http.ResponseWriter, r *http.Request) {
 
 	decoder := json.NewDecoder(r.Body)
 
-	data := SendRequest{}
+	data := sendMessageParams{}
 
-	if err := decoder.Decode(&data); err != nil {
+	if err := decoder.Decode(&data.Body); err != nil {
 		httpJSONError(w, err.Error())
 		return
 	}
 
-	id, err := data.Send(r.RemoteAddr)
+	var httpAuthUser *string
+	if user, _, ok := r.BasicAuth(); ok {
+		httpAuthUser = &user
+	}
+
+	id, err := data.Send(r.RemoteAddr, httpAuthUser)
 
 	if err != nil {
 		httpJSONError(w, err.Error())
@@ -164,14 +64,14 @@ func SendMessageHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	w.Header().Add("Content-Type", "application/json")
-	if err := json.NewEncoder(w).Encode(SendMessageConfirmation{ID: id}); err != nil {
+	if err := json.NewEncoder(w).Encode(struct{ ID string }{ID: id}); err != nil {
 		httpError(w, err.Error())
 	}
 }
 
 // Send will validate the message structure and attempt to send to Mailpit.
 // It returns a sending summary or an error.
-func (d SendRequest) Send(remoteAddr string) (string, error) {
+func (d sendMessageParams) Send(remoteAddr string, httpAuthUser *string) (string, error) {
 	ip, _, err := net.SplitHostPort(remoteAddr)
 	if err != nil {
 		return "", fmt.Errorf("error parsing request RemoteAddr: %s", err.Error())
@@ -182,16 +82,16 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 	addresses := []string{}
 
 	msg := enmime.Builder().
-		From(d.From.Name, d.From.Email).
-		Subject(d.Subject).
-		Text([]byte(d.Text))
+		From(d.Body.From.Name, d.Body.From.Email).
+		Subject(d.Body.Subject).
+		Text([]byte(d.Body.Text))
 
-	if d.HTML != "" {
-		msg = msg.HTML([]byte(d.HTML))
+	if d.Body.HTML != "" {
+		msg = msg.HTML([]byte(d.Body.HTML))
 	}
 
-	if len(d.To) > 0 {
-		for _, a := range d.To {
+	if len(d.Body.To) > 0 {
+		for _, a := range d.Body.To {
 			if _, err := mail.ParseAddress(a.Email); err == nil {
 				msg = msg.To(a.Name, a.Email)
 				addresses = append(addresses, a.Email)
@@ -201,8 +101,8 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 		}
 	}
 
-	if len(d.Cc) > 0 {
-		for _, a := range d.Cc {
+	if len(d.Body.Cc) > 0 {
+		for _, a := range d.Body.Cc {
 			if _, err := mail.ParseAddress(a.Email); err == nil {
 				msg = msg.CC(a.Name, a.Email)
 				addresses = append(addresses, a.Email)
@@ -212,8 +112,8 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 		}
 	}
 
-	if len(d.Bcc) > 0 {
-		for _, e := range d.Bcc {
+	if len(d.Body.Bcc) > 0 {
+		for _, e := range d.Body.Bcc {
 			if _, err := mail.ParseAddress(e); err == nil {
 				msg = msg.BCC("", e)
 				addresses = append(addresses, e)
@@ -223,8 +123,8 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 		}
 	}
 
-	if len(d.ReplyTo) > 0 {
-		for _, a := range d.ReplyTo {
+	if len(d.Body.ReplyTo) > 0 {
+		for _, a := range d.Body.ReplyTo {
 			if _, err := mail.ParseAddress(a.Email); err == nil {
 				msg = msg.ReplyTo(a.Name, a.Email)
 			} else {
@@ -235,13 +135,13 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 
 	restrictedHeaders := []string{"To", "From", "Cc", "Bcc", "Reply-To", "Date", "Subject", "Content-Type", "Mime-Version"}
 
-	if len(d.Tags) > 0 {
-		msg = msg.Header("X-Tags", strings.Join(d.Tags, ", "))
+	if len(d.Body.Tags) > 0 {
+		msg = msg.Header("X-Tags", strings.Join(d.Body.Tags, ", "))
 		restrictedHeaders = append(restrictedHeaders, "X-Tags")
 	}
 
-	if len(d.Headers) > 0 {
-		for k, v := range d.Headers {
+	if len(d.Body.Headers) > 0 {
+		for k, v := range d.Body.Headers {
 			// check header isn't in "restricted" headers
 			if tools.InArray(k, restrictedHeaders) {
 				return "", fmt.Errorf("cannot overwrite header: \"%s\"", k)
@@ -250,8 +150,8 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 		}
 	}
 
-	if len(d.Attachments) > 0 {
-		for _, a := range d.Attachments {
+	if len(d.Body.Attachments) > 0 {
+		for _, a := range d.Body.Attachments {
 			// workaround: split string because JS readAsDataURL() returns the base64 string
 			// with the mime type prefix eg: data:image/png;base64,<base64String>
 			parts := strings.Split(a.Content, ",")
@@ -260,9 +160,15 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 			if err != nil {
 				return "", fmt.Errorf("error decoding base64 attachment \"%s\": %s", a.Filename, err.Error())
 			}
-
-			mimeType := http.DetectContentType(b)
-			msg = msg.AddAttachment(b, mimeType, a.Filename)
+			contentType := http.DetectContentType(b)
+			if a.ContentType != "" {
+				contentType = a.ContentType
+			}
+			if a.ContentID != "" {
+				msg = msg.AddInline(b, contentType, a.Filename, a.ContentID)
+			} else {
+				msg = msg.AddAttachment(b, contentType, a.Filename)
+			}
 		}
 	}
 
@@ -277,5 +183,5 @@ func (d SendRequest) Send(remoteAddr string) (string, error) {
 		return "", fmt.Errorf("error building message: %s", err.Error())
 	}
 
-	return smtpd.SaveToDatabase(ipAddr, d.From.Email, addresses, buff.Bytes())
+	return smtpd.SaveToDatabase(ipAddr, d.Body.From.Email, addresses, buff.Bytes(), httpAuthUser)
 }

server/apiv1/structs.go

@@ -1,39 +1,9 @@
 package apiv1
 
 import (
-	"github.com/axllent/mailpit/internal/htmlcheck"
-	"github.com/axllent/mailpit/internal/linkcheck"
-	"github.com/axllent/mailpit/internal/spamassassin"
 	"github.com/axllent/mailpit/internal/storage"
 )
 
-// MessagesSummary is a summary of a list of messages
-type MessagesSummary struct {
-	// Total number of messages in mailbox
-	Total float64 `json:"total"`
-
-	// Total number of unread messages in mailbox
-	Unread float64 `json:"unread"`
-
-	// Legacy - now undocumented in API specs but left for backwards compatibility.
-	// Removed from API documentation 2023-07-12
-	// swagger:ignore
-	Count float64 `json:"count"`
-
-	// Total number of messages matching current query
-	MessagesCount float64 `json:"messages_count"`
-
-	// Pagination offset
-	Start int `json:"start"`
-
-	// All current tags
-	Tags []string `json:"tags"`
-
-	// Messages summary
-	// in: body
-	Messages []storage.MessageSummary `json:"messages"`
-}
-
 // The following structs & aliases are provided for easy import
 // and understanding of the JSON structure.
 
@@ -45,12 +15,3 @@ type Message = storage.Message
 
 // Attachment summary
 type Attachment = storage.Attachment
-
-// HTMLCheckResponse summary
-type HTMLCheckResponse = htmlcheck.Response
-
-// LinkCheckResponse summary
-type LinkCheckResponse = linkcheck.Response
-
-// SpamAssassinResponse summary
-type SpamAssassinResponse = spamassassin.Result

server/apiv1/swagger.go

@@ -1,215 +0,0 @@
-package apiv1
-
-import "github.com/axllent/mailpit/internal/stats"
-
-// These structs are for the purpose of defining swagger HTTP parameters & responses
-
-// Application information
-// swagger:response InfoResponse
-type infoResponse struct {
-	// Application information
-	//
-	// in: body
-	Body stats.AppInformation
-}
-
-// Web UI configuration
-// swagger:response WebUIConfigurationResponse
-type webUIConfigurationResponse struct {
-	// Web UI configuration settings
-	//
-	// in: body
-	Body webUIConfiguration
-}
-
-// Message summary
-// swagger:response MessagesSummaryResponse
-type messagesSummaryResponse struct {
-	// The message summary
-	// in: body
-	Body MessagesSummary
-}
-
-// Message headers
-// swagger:model MessageHeaders
-type messageHeaders map[string][]string
-
-// swagger:parameters DeleteMessages
-type deleteMessagesParams struct {
-	// in: body
-	Body *deleteMessagesRequestBody
-}
-
-// Delete request
-// swagger:model DeleteRequest
-type deleteMessagesRequestBody struct {
-	// Array of message database IDs
-	//
-	// required: false
-	// example: ["5dec4247-812e-4b77-9101-e25ad406e9ea", "8ac66bbc-2d9a-4c41-ad99-00aa75fa674e"]
-	IDs []string
-}
-
-// swagger:parameters SetReadStatus
-type setReadStatusParams struct {
-	// in: body
-	Body *setReadStatusRequestBody
-}
-
-// Set read status request
-// swagger:model setReadStatusRequestBody
-type setReadStatusRequestBody struct {
-	// Read status
-	//
-	// required: false
-	// default: false
-	// example: true
-	Read bool
-
-	// Array of message database IDs
-	//
-	// required: false
-	// example: ["5dec4247-812e-4b77-9101-e25ad406e9ea", "8ac66bbc-2d9a-4c41-ad99-00aa75fa674e"]
-	IDs []string
-}
-
-// swagger:parameters SetTags
-type setTagsParams struct {
-	// in: body
-	Body *setTagsRequestBody
-}
-
-// Set tags request
-// swagger:model setTagsRequestBody
-type setTagsRequestBody struct {
-	// Array of tag names to set
-	//
-	// required: true
-	// example: ["Tag 1", "Tag 2"]
-	Tags []string
-
-	// Array of message database IDs
-	//
-	// required: true
-	// example: ["5dec4247-812e-4b77-9101-e25ad406e9ea", "8ac66bbc-2d9a-4c41-ad99-00aa75fa674e"]
-	IDs []string
-}
-
-// swagger:parameters RenameTag
-type renameTagParams struct {
-	// in: body
-	Body *renameTagRequestBody
-}
-
-// Rename tag request
-// swagger:model renameTagRequestBody
-type renameTagRequestBody struct {
-	// New name
-	//
-	// required: true
-	// example: New name
-	Name string
-}
-
-// swagger:parameters ReleaseMessage
-type releaseMessageParams struct {
-	// Message database ID
-	//
-	// in: path
-	// description: Message database ID
-	// required: true
-	ID string
-
-	// in: body
-	Body *releaseMessageRequestBody
-}
-
-// Release request
-// swagger:model releaseMessageRequestBody
-type releaseMessageRequestBody struct {
-	// Array of email addresses to relay the message to
-	// required: true
-	// example: ["user1@example.com", "user2@example.com"]
-	To []string
-}
-
-// swagger:parameters HTMLCheck
-type htmlCheckParams struct {
-	// Message database ID or "latest"
-	//
-	// in: path
-	// description: Message database ID or "latest"
-	// required: true
-	ID string
-}
-
-// swagger:parameters LinkCheck
-type linkCheckParams struct {
-	// Message database ID or "latest"
-	//
-	// in: path
-	// description: Message database ID or "latest"
-	// required: true
-	ID string
-
-	// Follow redirects
-	//
-	// in: query
-	// description: Follow redirects
-	// required: false
-	// default: false
-	Follow string `json:"follow"`
-}
-
-// swagger:parameters SpamAssassinCheck
-type spamAssassinCheckParams struct {
-	// Message database ID or "latest"
-	//
-	// in: path
-	// description: Message database ID or "latest"
-	// required: true
-	ID string
-}
-
-// Binary data response inherits the attachment's content type.
-// swagger:response BinaryResponse
-type binaryResponse string
-
-// Plain text response
-// swagger:response TextResponse
-type textResponse string
-
-// HTML response
-// swagger:response HTMLResponse
-type htmlResponse string
-
-// HTTP error response will return with a >= 400 response code
-// swagger:response ErrorResponse
-// example: invalid request
-type errorResponse string
-
-// Plain text "ok" response
-// swagger:response OKResponse
-type okResponse string
-
-// Plain JSON array response
-// swagger:response ArrayResponse
-type arrayResponse []string
-
-// Confirmation message for HTTP send API
-// swagger:response sendMessageResponse
-type sendMessageResponse struct {
-	// Response for sending messages via the HTTP API
-	//
-	// in: body
-	Body SendMessageConfirmation
-}
-
-// JSON error response
-// swagger:response jsonErrorResponse
-type jsonErrorResponse struct {
-	// A JSON-encoded error response
-	//
-	// in: body
-	Body JSONErrorMessage
-}

server/apiv1/swaggerParams.go

@@ -0,0 +1,416 @@
+// Package apiv1 provides the API v1 endpoints for Mailpit.
+//
+// These structs are for the purpose of defining swagger HTTP parameters in go-swagger
+// in order to generate a spec file. They are lowercased to avoid exporting them as public types.
+//
+//nolint:unused
+package apiv1
+
+import "github.com/axllent/mailpit/internal/smtpd/chaos"
+
+// swagger:parameters setChaosParams
+type setChaosParams struct {
+	// in: body
+	Body chaos.Triggers
+}
+
+// swagger:parameters AttachmentParams
+type attachmentParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+
+	// Attachment part ID
+	//
+	// in: path
+	// required: true
+	PartID string
+}
+
+// swagger:parameters DownloadRawParams
+type downloadRawParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+}
+
+// swagger:parameters GetMessageParams
+type getMessageParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+}
+
+// swagger:parameters GetHeadersParams
+type getHeadersParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+}
+
+// swagger:parameters GetMessagesParams
+type getMessagesParams struct {
+	// Pagination offset
+	//
+	// in: query
+	// name: start
+	// required: false
+	// default: 0
+	// type: integer
+	Start int `json:"start"`
+
+	// Limit number of results
+	//
+	// in: query
+	// name: limit
+	// required: false
+	// default: 50
+	// type: integer
+	Limit int `json:"limit"`
+}
+
+// swagger:parameters SetReadStatusParams
+type setReadStatusParams struct {
+	// in: body
+	Body struct {
+		// Read status
+		//
+		// required: false
+		// default: false
+		// example: true
+		Read bool
+
+		// Optional array of message database IDs
+		//
+		// required: false
+		// default: []
+		// example: ["4oRBnPtCXgAqZniRhzLNmS", "hXayS6wnCgNnt6aFTvmOF6"]
+		IDs []string
+
+		// Optional messages matching a search
+		//
+		// required: false
+		// example: tag:backups
+		Search string
+	}
+
+	// Optional [timezone identifier](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) used only for `before:` & `after:` searches (eg: "Pacific/Auckland").
+	//
+	// in: query
+	// required: false
+	// type string
+	TZ string `json:"tz"`
+}
+
+// swagger:parameters DeleteMessagesParams
+type deleteMessagesParams struct {
+	// Delete request
+	// in: body
+	Body struct {
+		// Array of message database IDs
+		//
+		// required: false
+		// example: ["4oRBnPtCXgAqZniRhzLNmS", "hXayS6wnCgNnt6aFTvmOF6"]
+		IDs []string
+	}
+}
+
+// swagger:parameters SearchParams
+type searchParams struct {
+	// Search query
+	//
+	// in: query
+	// required: true
+	// type: string
+	Query string `json:"query"`
+
+	// Pagination offset
+	//
+	// in: query
+	// required: false
+	// default: 0
+	// type integer
+	Start string `json:"start"`
+
+	// Limit results
+	//
+	// in: query
+	// required: false
+	// default: 50
+	// type integer
+	Limit string `json:"limit"`
+
+	// Optional [timezone identifier](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) used only for `before:` & `after:` searches (eg: "Pacific/Auckland").
+	//
+	// in: query
+	// required: false
+	// type string
+	TZ string `json:"tz"`
+}
+
+// swagger:parameters DeleteSearchParams
+type deleteSearchParams struct {
+	// Search query
+	//
+	// in: query
+	// required: true
+	// type: string
+	Query string `json:"query"`
+
+	// [Timezone identifier](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) used only for `before:` & `after:` searches (eg: "Pacific/Auckland").
+	//
+	// in: query
+	// required: false
+	// type string
+	TZ string `json:"tz"`
+}
+
+// swagger:parameters HTMLCheckParams
+type htmlCheckParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// description: Message database ID or "latest"
+	// required: true
+	ID string
+}
+
+// swagger:parameters LinkCheckParams
+type linkCheckParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+
+	// Follow redirects
+	//
+	// in: query
+	// required: false
+	// default: false
+	Follow string `json:"follow"`
+}
+
+// swagger:parameters ReleaseMessageParams
+type releaseMessageParams struct {
+	// Message database ID
+	//
+	// in: path
+	// description: Message database ID
+	// required: true
+	ID string
+
+	// in: body
+	Body struct {
+		// Array of email addresses to relay the message to
+		//
+		// required: true
+		// example: ["user1@example.com", "user2@example.com"]
+		To []string
+	}
+}
+
+// swagger:parameters SendMessageParams
+type sendMessageParams struct {
+	// in: body
+	// Body SendRequest
+	Body struct {
+		// "From" recipient
+		// required: true
+		From struct {
+			// Optional name
+			// example: John Doe
+			Name string
+			// Email address
+			// example: john@example.com
+			// required: true
+			Email string
+		}
+
+		// "To" recipients
+		To []struct {
+			// Optional name
+			// example: Jane Doe
+			Name string
+			// Email address
+			// example: jane@example.com
+			// required: true
+			Email string
+		}
+
+		// Cc recipients
+		Cc []struct {
+			// Optional name
+			// example: Manager
+			Name string
+			// Email address
+			// example: manager@example.com
+			// required: true
+			Email string
+		}
+
+		// Bcc recipients email addresses only
+		// example: ["jack@example.com"]
+		Bcc []string
+
+		// Optional Reply-To recipients
+		ReplyTo []struct {
+			// Optional name
+			// example: Secretary
+			Name string
+			// Email address
+			// example: secretary@example.com
+			// required: true
+			Email string
+		}
+
+		// Subject
+		// example: Mailpit message via the HTTP API
+		Subject string
+
+		// Message body (text)
+		// example: Mailpit is awesome!
+		Text string
+
+		// Message body (HTML)
+		// example: <div style="text-align:center"><p style="font-family: arial; font-size: 24px;">Mailpit is <b>awesome</b>!</p><p><img src="cid:mailpit-logo" /></p></div>
+		HTML string
+
+		// Attachments
+		Attachments []struct {
+			// Base64-encoded string of the file content
+			// required: true
+			// example: 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
+			Content string
+			// Filename
+			// required: true
+			// example: mailpit.png
+			Filename string
+			// Optional Content Type for the the attachment.
+			// If this field is not set (or empty) then the content type is automatically detected.
+			// required: false
+			// example: image/png
+			ContentType string
+			// Optional Content-ID (`cid`) for attachment.
+			// If this field is set then the file is attached inline.
+			// required: false
+			// example: mailpit-logo
+			ContentID string
+		}
+
+		// Mailpit tags
+		// example: ["Tag 1","Tag 2"]
+		Tags []string
+
+		// Optional headers in {"key":"value"} format
+		// example: {"X-IP":"1.2.3.4"}
+		Headers map[string]string
+	}
+}
+
+// swagger:parameters SetTagsParams
+type setTagsParams struct {
+	// in: body
+	Body struct {
+		// Array of tag names to set
+		//
+		// required: true
+		// example: ["Tag 1", "Tag 2"]
+		Tags []string
+
+		// Array of message database IDs
+		//
+		// required: true
+		// example: ["4oRBnPtCXgAqZniRhzLNmS", "hXayS6wnCgNnt6aFTvmOF6"]
+		IDs []string
+	}
+}
+
+// swagger:parameters RenameTagParams
+type renameTagParams struct {
+	// The url-encoded tag name to rename
+	//
+	// in: path
+	// required: true
+	// type: string
+	Tag string
+
+	// in: body
+	Body struct {
+		// New name
+		//
+		// required: true
+		// example: New name
+		Name string
+	}
+}
+
+// swagger:parameters DeleteTagParams
+type deleteTagParams struct {
+	// The url-encoded tag name to delete
+	//
+	// in: path
+	// required: true
+	Tag string
+}
+
+// swagger:parameters GetMessageHTMLParams
+type getMessageHTMLParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+
+	// If this is route is to be embedded in an iframe, set embed to `1` in the URL to add `target="_blank"` and `rel="noreferrer noopener"` to all links.
+	//
+	// In addition, a small script will be added to the end of the document to post (postMessage()) the height of the document back to the parent window for optional iframe height resizing.
+	//
+	// Note that this will also *transform* the message into a full HTML document (if it isn't already), so this option is useful for viewing but not programmatic testing.
+	//
+	// in: query
+	// required: false
+	// type: string
+	Embed string `json:"embed"`
+}
+
+// swagger:parameters GetMessageTextParams
+type getMessageTextParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+}
+
+// swagger:parameters SpamAssassinCheckParams
+type spamAssassinCheckParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+}
+
+// swagger:parameters ThumbnailParams
+type thumbnailParams struct {
+	// Message database ID or "latest"
+	//
+	// in: path
+	// required: true
+	ID string
+
+	// Attachment part ID
+	//
+	// in: path
+	// required: true
+	PartID string
+}

server/apiv1/swaggerResponses.go

@@ -0,0 +1,142 @@
+// Package apiv1 provides the API v1 endpoints for Mailpit.
+//
+// These structs are for the purpose of defining swagger HTTP responses in go-swagger
+// in order to generate a spec file. They are lowercased to avoid exporting them as public types.
+//
+//nolint:unused
+package apiv1
+
+import (
+	"github.com/axllent/mailpit/internal/smtpd/chaos"
+	"github.com/axllent/mailpit/internal/stats"
+)
+
+// Binary data response which inherits the attachment's content type.
+// swagger:response BinaryResponse
+type binaryResponse string
+
+// Plain text response
+// swagger:response TextResponse
+type textResponse string
+
+// HTML response
+// swagger:response HTMLResponse
+type htmlResponse string
+
+// Server error will return with a 400 status code
+// with the error message in the body
+// swagger:response ErrorResponse
+type errorResponse string
+
+// Not found error will return a 404 status code
+// swagger:response NotFoundResponse
+type notFoundResponse string
+
+// Plain text "ok" response
+// swagger:response OKResponse
+type okResponse string
+
+// Plain JSON array response
+// swagger:response ArrayResponse
+type arrayResponse []string
+
+// JSON error response
+// swagger:response JSONErrorResponse
+type jsonErrorResponse struct {
+	// A JSON-encoded error response
+	//
+	// in: body
+	Body struct {
+		// Error message
+		// example: invalid format
+		Error string
+	}
+}
+
+// Web UI configuration response
+// swagger:response WebUIConfigurationResponse
+type webUIConfigurationResponse struct {
+	// Web UI configuration settings
+	//
+	// in: body
+	Body struct {
+		// Optional label to identify this Mailpit instance
+		Label string
+		// Message Relay information
+		MessageRelay struct {
+			// Whether message relaying (release) is enabled
+			Enabled bool
+			// The configured SMTP server address
+			SMTPServer string
+			// Enforced Return-Path (if set) for relay bounces
+			ReturnPath string
+			// Only allow relaying to these recipients (regex)
+			AllowedRecipients string
+			// Block relaying to these recipients (regex)
+			BlockedRecipients string
+			// Overrides the "From" address for all relayed messages
+			OverrideFrom string
+			// Preserve the original Message-IDs when relaying messages
+			PreserveMessageIDs bool
+
+			// DEPRECATED 2024/03/12
+			// swagger:ignore
+			RecipientAllowlist string
+		}
+
+		// Whether SpamAssassin is enabled
+		SpamAssassin bool
+
+		// Whether Chaos support is enabled at runtime
+		ChaosEnabled bool
+
+		// Whether messages with duplicate IDs are ignored
+		DuplicatesIgnored bool
+
+		// Whether the delete button should be hidden
+		HideDeleteAllButton bool
+	}
+}
+
+// Application information
+// swagger:response AppInfoResponse
+type appInfoResponse struct {
+	// Application information
+	//
+	// in: body
+	Body stats.AppInformation
+}
+
+// Response for the Chaos triggers configuration
+// swagger:response ChaosResponse
+type chaosResponse struct {
+	// The current Chaos triggers
+	//
+	// in: body
+	Body chaos.Triggers
+}
+
+// Message headers
+// swagger:model MessageHeadersResponse
+type messageHeadersResponse map[string][]string
+
+// Summary of messages
+// swagger:response MessagesSummaryResponse
+type messagesSummaryResponse struct {
+	// The messages summary
+	// in: body
+	Body MessagesSummary
+}
+
+// Confirmation message for HTTP send API
+// swagger:response SendMessageResponse
+type sendMessageResponse struct {
+	// Response for sending messages via the HTTP API
+	//
+	// in: body
+	Body struct {
+		// Database ID
+		// example: iAfZVVe2UQfNSG5BAjgYwa
+		ID string
+	}
+}