Merge branch 'release/v1.29.5'

Note that this does not provide any additional security as such as the CSP headers do this, however it is another barrier when it comes to bypass attempts.

.github/workflows/build-docker-edge.yml

@@ -9,6 +9,8 @@ jobs:
     steps:
     - name: Checkout repository
       uses: actions/checkout@v6
+      with:
+          fetch-depth: 0 # required for github-action-get-previous-tag
 
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v3
@@ -29,7 +31,12 @@ jobs:
         username: ${{ github.repository_owner }}
         password: ${{ github.token }}
 
-    - uses: benjlevesque/short-sha@v3.0
+    - name: Get previous git tag
+      uses: WyriHaximus/github-action-get-previous-tag@v2
+      id: previous-tag
+
+    - name: Get short SHA
+      uses: benjlevesque/short-sha@v3.0
       id: short-sha
 
     - name: Build and push
@@ -38,7 +45,7 @@ jobs:
         context: .
         platforms: linux/386,linux/amd64,linux/arm64
         build-args: |
-          "VERSION=edge-${{ steps.short-sha.outputs.sha }}"
+          "VERSION=${{ steps.previous-tag.outputs.tag }}-${{ steps.short-sha.outputs.sha }}"
         push: true
         tags: |
           axllent/mailpit:edge

CHANGELOG.md

@@ -2,6 +2,109 @@
 
 Notable changes to Mailpit will be documented in this file.
 
+## [v1.29.5]
+
+### Security
+- Add sandbox attribute to message iframe for extra later of security (already protected via CSP headers)
+
+### Feature
+- Add option to disable auto-VACUUMing of the SQLite database ([#661](https://github.com/axllent/mailpit/issues/661))
+
+### Chore
+- Update Go dependencies
+- Update node dependencies
+
+
+## [v1.29.4]
+
+### Feature
+- Add filter functionality to message headers tab
+
+### Chore
+- Update Go dependencies
+- Update node dependencies
+
+### Fix
+- Refactor webhook delay & rate limit logic to ignore endpoint response times & prevent hardcoded 1000 message limit when set to 0 ([#656](https://github.com/axllent/mailpit/issues/656))
+
+
+## [v1.29.3]
+
+### Security
+- Enhance CORS origin handling to respect host:port distinctions
+- Limit proxy requests to 50MB to prevent OOM attacks
+- Enhance HTML sanitization in message view
+- Enhance HTML sanitization in screenshot generation
+- Escape ContentID in HTML replacement to prevent regex injection
+
+### Chore
+- Use last release + git hash in Docker edge versions
+- Bump minimatch from 10.2.2 to 10.2.4
+- Refactor code with go fix
+- Switch to math/rand/v2
+- Refactor API send authentication logic
+- Refactor events websocket middleware
+- Set timeout for HTTP client in webhook Send function
+- Use local hostname for EHLO/HELO in SMTP communication
+- Simplify HTML decoding function in screenshot generation using DOMParser
+- Set margin & padding to HTML screenshot to prevent transparent top/left border
+- Replace localStorage retrieval with a dedicated function for default release addresses
+- Limit subject length to 100 characters in browser notifications
+- Improve transaction handling in pruneMessages and fix loop continuation in InitDB
+- Update Content-Disposition header to use inline display and escape filename
+- Refactor timezone handling in searchQueryBuilder
+- Update Go dependencies
+- Update node dependencies
+
+### Fix
+- Update SQL query to use tenant when using is:tagged filter
+
+
+## [v1.29.2]
+
+### Security
+- Prevent Server-Side Request Forgery (SSRF) via Link Check API ([GHSA-mpf7-p9x7-96r3](https://github.com/axllent/mailpit/security/advisories/GHSA-mpf7-p9x7-96r3))
+
+### Chore
+- Upgrade eslint JavaScript linting
+- Update Go dependencies
+- Update node dependencies
+- Update caniemail test database
+
+### Fix
+- Update install instructions when setting INSTALL_PATH
+- Include 8BITMIME in SMTPD EHLO response ([#648](https://github.com/axllent/mailpit/issues/648))
+
+
+## [v1.29.1]
+
+### Chore
+- Add CORS error logging and update error messages for failed CORS requests
+- Bump axios from 1.13.4 to 1.13.5
+- Update Go dependencies
+- Update node dependencies
+
+### Fix
+- Enable "Mark all read" button (Inbox) when new message is received
+
+
+## [v1.29.0]
+
+### Feature
+- Include message attachment checksums (MD5, SHA1 & SHA254) in API message summary
+- Option to display/hide attachment information in message view in web UI including checksums, content type & disposition
+
+### Chore
+- Add support for multi-origin CORS settings and apply to events websocket ([#630](https://github.com/axllent/mailpit/issues/630))
+- Add support for webhook delay ([#627](https://github.com/axllent/mailpit/issues/627))
+- Update Go dependencies
+- Update node dependencies
+
+### Test
+- Add CORS tests
+- Add message summary attachment checksum tests
+
+
 ## [v1.28.4]
 
 ### Chore

CONTRIBUTING.md

@@ -1,16 +1,10 @@
-# 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.
+# Contributing to Mailpit
 
+Thank you for your interest in contributing to Mailpit! 
 
 ## 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).
+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. Please **do not** report security issues here (see below).
 
 
 ## Reporting security issues
@@ -18,44 +12,11 @@ If you find a bug or have a feature request, please [open an issue](https://gith
 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.
 
 
+## Contributing code
 
-## How to contribute (pull request)
+Please ensure your code is clean and well-commented, and [passes linting](https://mailpit.axllent.org/docs/development/code-linting/) before submitting a Pull Request. Contributions should enhance the functionality or usability of Mailpit, focusing on quality over quantity.
 
-1. **Fork the repository**  
-   Click the "Fork" button at the top right of this repository to create your own copy.
+Note that while assistance from AI tools is perfectly acceptable, **"[vibe coded](https://en.wikipedia.org/wiki/Vibe_coding)" pull requests will most likely not be accepted.**
+We value the unique insights and creativity that individual contributors bring to the project.
 
-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!
+Thank you for your understanding and for contributing to Mailpit!

README.md

@@ -79,7 +79,7 @@ sudo sh < <(curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/i
 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)
+sudo INSTALL_PATH=/usr/bin sh < <(curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/install.sh)
 ```
 
 

cmd/readyz.go

@@ -41,7 +41,8 @@ settings to determine the HTTP bind interface & port.
 			IdleConnTimeout:       time.Second * 5,
 			ExpectContinueTimeout: time.Second * 5,
 			TLSHandshakeTimeout:   time.Second * 5,
-			// do not verify TLS in case this instance is using HTTPS
+			// do not verify TLS if this instance is using HTTPS as we connect using IP
+			// so won't be the same as the cert
 			TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, // #nosec
 		}
 		client := &http.Client{Transport: conf}

cmd/root.go

@@ -86,6 +86,7 @@ func init() {
 	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().BoolVar(&config.DisableAutoVACUUM, "disable-auto-vacuum", config.DisableAutoVACUUM, "Disable auto-VACUUM for the database")
 	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")
@@ -103,8 +104,9 @@ func init() {
 	rootCmd.Flags().StringVar(&config.UIAuthFile, "ui-auth-file", config.UIAuthFile, "A password file for web UI & API authentication")
 	rootCmd.Flags().StringVar(&config.UITLSCert, "ui-tls-cert", config.UITLSCert, "TLS certificate for web UI (HTTPS) - requires ui-tls-key")
 	rootCmd.Flags().StringVar(&config.UITLSKey, "ui-tls-key", config.UITLSKey, "TLS key for web UI (HTTPS) - requires ui-tls-cert")
-	rootCmd.Flags().StringVar(&server.AccessControlAllowOrigin, "api-cors", server.AccessControlAllowOrigin, "Set API CORS Access-Control-Allow-Origin header")
+	rootCmd.Flags().StringVar(&server.AccessControlAllowOrigin, "api-cors", server.AccessControlAllowOrigin, "Set CORS origin(s) for the API, comma-separated (eg: example.com,foo.com)")
 	rootCmd.Flags().BoolVar(&config.BlockRemoteCSSAndFonts, "block-remote-css-and-fonts", config.BlockRemoteCSSAndFonts, "Block access to remote CSS & fonts")
+	rootCmd.Flags().BoolVar(&config.AllowInternalHTTPRequests, "allow-internal-http-requests", config.AllowInternalHTTPRequests, "Allow link-checker & screenshots to access internal IP addresses")
 	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)")
@@ -160,6 +162,7 @@ func init() {
 	// Webhook
 	rootCmd.Flags().StringVar(&config.WebhookURL, "webhook-url", config.WebhookURL, "Send a webhook request for new messages")
 	rootCmd.Flags().IntVar(&webhook.RateLimit, "webhook-limit", webhook.RateLimit, "Limit webhook requests per second")
+	rootCmd.Flags().IntVar(&webhook.Delay, "webhook-delay", webhook.Delay, "Delay in seconds before sending webhook requests (default 0)")
 
 	// DEPRECATED FLAG 2024/04/12 - but will not be removed to maintain backwards compatibility
 	rootCmd.Flags().StringVar(&config.Database, "db-file", config.Database, "Database file to store persistent data")
@@ -200,6 +203,8 @@ func initConfigFromEnv() {
 
 	config.DisableVersionCheck = getEnabledFromEnv("MP_DISABLE_VERSION_CHECK")
 
+	config.DisableAutoVACUUM = getEnabledFromEnv("MP_DISABLE_AUTO_VACUUM")
+
 	if len(os.Getenv("MP_COMPRESSION")) > 0 {
 		config.Compression, _ = strconv.Atoi(os.Getenv("MP_COMPRESSION"))
 	}
@@ -249,6 +254,9 @@ func initConfigFromEnv() {
 	if getEnabledFromEnv("MP_BLOCK_REMOTE_CSS_AND_FONTS") {
 		config.BlockRemoteCSSAndFonts = true
 	}
+	if getEnabledFromEnv("MP_ALLOW_INTERNAL_HTTP_REQUESTS") {
+		config.AllowInternalHTTPRequests = true
+	}
 	if len(os.Getenv("MP_ENABLE_SPAMASSASSIN")) > 0 {
 		config.EnableSpamAssassin = os.Getenv("MP_ENABLE_SPAMASSASSIN")
 	}
@@ -387,6 +395,9 @@ func initConfigFromEnv() {
 	if len(os.Getenv("MP_WEBHOOK_LIMIT")) > 0 {
 		webhook.RateLimit, _ = strconv.Atoi(os.Getenv("MP_WEBHOOK_LIMIT"))
 	}
+	if len(os.Getenv("MP_WEBHOOK_DELAY")) > 0 {
+		webhook.Delay, _ = strconv.Atoi(os.Getenv("MP_WEBHOOK_DELAY"))
+	}
 
 	// Demo mode
 	config.DemoMode = getEnabledFromEnv("MP_DEMO_MODE")

config/config.go

@@ -46,6 +46,10 @@ var (
 	// @see https://sqlite.org/wal.html
 	DisableWAL bool
 
+	// DisableAutoVACUUM will disable the auto-VACUUM of the local SQLite database when messages
+	// are deleted and a preconfigured threshold is reached.
+	DisableAutoVACUUM 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
@@ -127,6 +131,10 @@ var (
 	// BlockRemoteCSSAndFonts used to disable remote CSS & fonts
 	BlockRemoteCSSAndFonts = false
 
+	// AllowInternalHTTPRequests will allow HTTP requests to internal IP addresses (e.g., loopback, private, link-local, or multicast) when set to true.
+	// This policy applies to both link checking and screenshot generation (proxy) features and is disabled by default for security reasons.
+	AllowInternalHTTPRequests = false
+
 	// CLITagsArg is used to map the CLI args
 	CLITagsArg string
 

config/tags.go

@@ -94,9 +94,9 @@ func parseTagsDisable(s string) error {
 		return nil
 	}
 
-	parts := strings.Split(strings.ToLower(s), ",")
+	parts := strings.SplitSeq(strings.ToLower(s), ",")
 
-	for _, p := range parts {
+	for p := range parts {
 		switch strings.TrimSpace(p) {
 		case "x-tags", "xtags":
 			TagsDisableXTags = true

config/validators.go

@@ -26,8 +26,8 @@ func parseMaxAge() error {
 		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 before, ok := strings.CutSuffix(MaxAge, "h"); ok {
+		hours, err := strconv.Atoi(before)
 		if err != nil {
 			return err
 		}
@@ -221,8 +221,8 @@ func validateForwardConfig() error {
 	}
 
 	to := []string{}
-	addresses := strings.Split(SMTPForwardConfig.To, ",")
-	for _, a := range addresses {
+	addresses := strings.SplitSeq(SMTPForwardConfig.To, ",")
+	for a := range addresses {
 		a = strings.TrimSpace(a)
 		m, err := mail.ParseAddress(a)
 		if err != nil {
@@ -263,8 +263,8 @@ func parseChaosTriggers() error {
 
 	re := regexp.MustCompile(`^([a-zA-Z0-0]+):(\d\d\d):(\d+(\.\d)?)$`)
 
-	parts := strings.Split(ChaosTriggers, ",")
-	for _, p := range parts {
+	parts := strings.SplitSeq(ChaosTriggers, ",")
+	for p := range parts {
 		p = strings.TrimSpace(p)
 		if !re.MatchString(p) {
 			return fmt.Errorf("invalid argument: %s", p)

go.mod

@@ -1,19 +1,19 @@
 module github.com/axllent/mailpit
 
-go 1.24.3
+go 1.25.0
 
 require (
-	github.com/PuerkitoBio/goquery v1.11.0
+	github.com/PuerkitoBio/goquery v1.12.0
 	github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de
-	github.com/axllent/ghru/v2 v2.0.2
+	github.com/axllent/ghru/v2 v2.2.0
 	github.com/axllent/semver v1.0.0
 	github.com/goccy/go-yaml v1.19.2
-	github.com/gomarkdown/markdown v0.0.0-20250810172220-2e2c11897d1a
+	github.com/gomarkdown/markdown v0.0.0-20260217112301-37c66b85d6ab
 	github.com/gorilla/mux v1.8.1
 	github.com/gorilla/websocket v1.5.3
-	github.com/jhillyerd/enmime/v2 v2.2.0
-	github.com/klauspost/compress v1.18.3
-	github.com/kovidgoyal/imaging v1.8.19
+	github.com/jhillyerd/enmime/v2 v2.3.0
+	github.com/klauspost/compress v1.18.5
+	github.com/kovidgoyal/imaging v1.8.20
 	github.com/leporo/sqlf v1.4.0
 	github.com/lithammer/shortuuid/v4 v4.2.0
 	github.com/mneis/go-telnet v0.0.0-20221017141824-6f643e477c62
@@ -24,12 +24,12 @@ require (
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	github.com/tg123/go-htpasswd v1.2.4
-	github.com/vanng822/go-premailer v1.30.0
-	golang.org/x/crypto v0.47.0
-	golang.org/x/net v0.49.0
-	golang.org/x/text v0.33.0
-	golang.org/x/time v0.14.0
-	modernc.org/sqlite v1.44.3
+	github.com/vanng822/go-premailer v1.33.0
+	golang.org/x/crypto v0.49.0
+	golang.org/x/net v0.52.0
+	golang.org/x/text v0.35.0
+	golang.org/x/time v0.15.0
+	modernc.org/sqlite v1.48.0
 )
 
 require (
@@ -38,11 +38,11 @@ require (
 	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/clipperhouse/displaywidth v0.7.0 // indirect
-	github.com/clipperhouse/stringish v0.1.1 // indirect
-	github.com/clipperhouse/uax29/v2 v2.3.1 // indirect
+	github.com/clipperhouse/displaywidth v0.11.0 // indirect
+	github.com/clipperhouse/uax29/v2 v2.7.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/fatih/color v1.18.0 // indirect
+	github.com/fatih/color v1.19.0 // indirect
+	github.com/goccy/go-json v0.10.6 // 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
@@ -50,32 +50,30 @@ require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/kovidgoyal/go-parallel v1.1.1 // indirect
 	github.com/kovidgoyal/go-shm v1.0.0 // indirect
-	github.com/kr/text v0.2.0 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mattn/go-runewidth v0.0.19 // indirect
+	github.com/mattn/go-runewidth v0.0.21 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6 // indirect
 	github.com/olekukonko/errors v1.2.0 // indirect
-	github.com/olekukonko/ll v0.1.4-0.20260115111900-9e59c2286df0 // indirect
-	github.com/olekukonko/tablewriter v1.1.3 // indirect
+	github.com/olekukonko/ll v0.1.8 // indirect
+	github.com/olekukonko/tablewriter v1.1.4 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
 	github.com/prometheus/common v0.67.5 // indirect
-	github.com/prometheus/procfs v0.19.2 // indirect
+	github.com/prometheus/procfs v0.20.1 // indirect
 	github.com/reiver/go-oi v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd // 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
-	go.yaml.in/yaml/v2 v2.4.3 // indirect
-	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
-	golang.org/x/image v0.35.0 // indirect
-	golang.org/x/mod v0.32.0 // indirect
-	golang.org/x/sys v0.40.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.4 // indirect
+	golang.org/x/image v0.38.0 // indirect
+	golang.org/x/mod v0.34.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
-	modernc.org/libc v1.67.6 // indirect
+	modernc.org/libc v1.70.0 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
 )

go.sum

@@ -1,13 +1,13 @@
 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 v1.11.0 h1:jZ7pwMQXIITcUXNH83LLk+txlaEy6NVOfTuP43xxfqw=
-github.com/PuerkitoBio/goquery v1.11.0/go.mod h1:wQHgxUOU3JGuj3oD/QFfxUdlzW6xPHfqyHre6VMY4DQ=
+github.com/PuerkitoBio/goquery v1.12.0 h1:pAcL4g3WRXekcB9AU/y1mbKez2dbY2AajVhtkO8RIBo=
+github.com/PuerkitoBio/goquery v1.12.0/go.mod h1:802ej+gV2y7bbIhOIoPY5sT183ZW0YFofScC4q/hIpQ=
 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/ghru/v2 v2.0.2 h1:xalJupjJAU8Kcs39AwpG53qbcbi3+WKM98BEoQWf/zU=
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@@ -16,29 +16,28 @@ github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a h1:MISbI8sU/PSK/
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@@ -58,20 +57,16 @@ github.com/inbucket/html2text v1.0.0 h1:N5kza++4uBBDJ2Z3KUnTRyPNoBcW+YfOgNiNmNB+
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@@ -83,8 +78,8 @@ github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stg
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@@ -97,10 +92,10 @@ github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6 h1:zrbMGy9YXpIeTnGj
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@@ -111,15 +106,13 @@ github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNw
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@@ -150,13 +143,13 @@ github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6Kllzaw
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 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
@@ -164,19 +157,17 @@ golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliY
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
 golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
-golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
-golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
-golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
-golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
-golang.org/x/image v0.35.0 h1:LKjiHdgMtO8z7Fh18nGY6KDcoEtVfsgLDPeLyguqb7I=
-golang.org/x/image v0.35.0/go.mod h1:MwPLTVgvxSASsxdLzKrl8BRFuyqMyGhLwmC+TO1Sybk=
+golang.org/x/crypto v0.49.0 h1:+Ng2ULVvLHnJ/ZFEq4KdcDd/cfjrrjjNSXNzxg0Y4U4=
+golang.org/x/crypto v0.49.0/go.mod h1:ErX4dUh2UM+CFYiXZRTcMpEcN8b/1gxEuv3nODoYtCA=
+golang.org/x/image v0.38.0 h1:5l+q+Y9JDC7mBOMjo4/aPhMDcxEptsX+Tt3GgRQRPuE=
+golang.org/x/image v0.38.0/go.mod h1:/3f6vaXC+6CEanU4KJxbcUZyEePbyKbaLoDOe4ehFYY=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/mod v0.32.0 h1:9F4d3PHLljb6x//jOyokMv3eX+YDeepZSEo3mFJy93c=
-golang.org/x/mod v0.32.0/go.mod h1:SgipZ/3h2Ci89DlEtEXWUk/HteuRin+HHhN+WbNhguU=
+golang.org/x/mod v0.34.0 h1:xIHgNUUnW6sYkcM5Jleh05DvLOtwc6RitGHbDk4akRI=
+golang.org/x/mod v0.34.0/go.mod h1:ykgH52iCZe79kzLLMhyCUzhMci+nQj+0XkbXpNYtVjY=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
@@ -186,8 +177,8 @@ golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
-golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
-golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/net v0.52.0 h1:He/TN1l0e4mmR3QqHMT2Xab3Aj3L9qjbhRm78/6jrW0=
+golang.org/x/net v0.52.0/go.mod h1:R1MAz7uMZxVMualyPXb+VaqGSa3LIaUqk0eEt3w36Sw=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -195,8 +186,8 @@ golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
-golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -209,8 +200,8 @@ golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
-golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -229,41 +220,39 @@ golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
-golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
-golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
-golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
-golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+golang.org/x/text v0.35.0 h1:JOVx6vVDFokkpaq1AEptVzLTpDe9KGpj5tR4/X+ybL8=
+golang.org/x/text v0.35.0/go.mod h1:khi/HExzZJ2pGnjenulevKNX1W67CUy0AsXcNubPGCA=
+golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U=
+golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
-golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
-golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
+golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
+golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
 google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 modernc.org/cc/v4 v4.27.1 h1:9W30zRlYrefrDV2JE2O8VDtJ1yPGownxciz5rrbQZis=
 modernc.org/cc/v4 v4.27.1/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0=
-modernc.org/ccgo/v4 v4.30.1 h1:4r4U1J6Fhj98NKfSjnPUN7Ze2c6MnAdL0hWw6+LrJpc=
-modernc.org/ccgo/v4 v4.30.1/go.mod h1:bIOeI1JL54Utlxn+LwrFyjCx2n2RDiYEaJVSrgdrRfM=
-modernc.org/fileutil v1.3.40 h1:ZGMswMNc9JOCrcrakF1HrvmergNLAmxOPjizirpfqBA=
-modernc.org/fileutil v1.3.40/go.mod h1:HxmghZSZVAz/LXcMNwZPA/DRrQZEVP9VX0V4LQGQFOc=
+modernc.org/ccgo/v4 v4.32.0 h1:hjG66bI/kqIPX1b2yT6fr/jt+QedtP2fqojG2VrFuVw=
+modernc.org/ccgo/v4 v4.32.0/go.mod h1:6F08EBCx5uQc38kMGl+0Nm0oWczoo1c7cgpzEry7Uc0=
+modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM=
+modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU=
 modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
 modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
-modernc.org/gc/v3 v3.1.1 h1:k8T3gkXWY9sEiytKhcgyiZ2L0DTyCQ/nvX+LoCljoRE=
-modernc.org/gc/v3 v3.1.1/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
+modernc.org/gc/v3 v3.1.2 h1:ZtDCnhonXSZexk/AYsegNRV1lJGgaNZJuKjJSWKyEqo=
+modernc.org/gc/v3 v3.1.2/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
 modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
 modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
-modernc.org/libc v1.67.6 h1:eVOQvpModVLKOdT+LvBPjdQqfrZq+pC39BygcT+E7OI=
-modernc.org/libc v1.67.6/go.mod h1:JAhxUVlolfYDErnwiqaLvUqc8nfb2r6S6slAgZOnaiE=
+modernc.org/libc v1.70.0 h1:U58NawXqXbgpZ/dcdS9kMshu08aiA6b7gusEusqzNkw=
+modernc.org/libc v1.70.0/go.mod h1:OVmxFGP1CI/Z4L3E0Q3Mf1PDE0BucwMkcXjjLntvHJo=
 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=
@@ -272,8 +261,8 @@ 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 v1.44.3 h1:+39JvV/HWMcYslAwRxHb8067w+2zowvFOUrOWIy9PjY=
-modernc.org/sqlite v1.44.3/go.mod h1:CzbrU2lSB1DKUusvwGz7rqEKIq+NUd8GWuBBZDs9/nA=
+modernc.org/sqlite v1.48.0 h1:ElZyLop3Q2mHYk5IFPPXADejZrlHu7APbpB0sF78bq4=
+modernc.org/sqlite v1.48.0/go.mod h1:hWjRO6Tj/5Ik8ieqxQybiEOUXy0NJFNp2tpvVpKlvig=
 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=

install.sh

@@ -2,10 +2,39 @@
 
 # This script will install the latest release of Mailpit.
 
+show_help() {
+    cat <<EOF
+Mailpit install script
+
+Usage:
+  $(basename "$0") [OPTIONS]
+
+Options:
+  -h, --help                            Show this help and exit
+  --install-path <path>                 Install location (default: /usr/local/bin)
+  --auth, --auth-token, 
+    --github-token, --token <token>     GitHub token for API authentication
+
+Environment:
+  INSTALL_PATH                          Default install path override
+  GITHUB_TOKEN                          GitHub API token
+EOF
+}
+
+# Show help if requested
+for arg in "$@"; do
+    case "$arg" in
+    -h|--help)
+        show_help
+        exit 0
+        ;;
+    esac
+done
+
 # Check dependencies is installed
 for cmd in curl tar; do
     if ! command -v "$cmd" >/dev/null 2>&1; then
-        echo "Then $cmd command is required but not installed."
+        echo "The $cmd command is required but not installed."
         echo "Please install $cmd and try again."
         exit 1
     fi
@@ -17,7 +46,7 @@ case "$(uname -s)" in
 Linux) OS="linux" ;;
 Darwin) OS="darwin" ;;
 *)
-    echo "OS not supported."
+    echo "Unsupported operating system: $(uname -s)"
     exit 2
     ;;
 esac
@@ -35,7 +64,7 @@ aarch64 | arm64)
     OS_ARCH="arm64"
     ;;
 *)
-    echo "OS architecture not supported."
+    echo "Unsupported architecture: $(uname -m)"
     exit 2
     ;;
 esac
@@ -47,7 +76,7 @@ TIMEOUT=90
 # Try the GITHUB_TOKEN environment variable is set globally.
 GITHUB_API_TOKEN="${GITHUB_TOKEN:-}"
 
-# Update the default values if the user has set.
+# Override defaults with any user-supplied arguments.
 while [ $# -gt 0 ]; do
     case $1 in
     --install-path)
@@ -66,6 +95,10 @@ while [ $# -gt 0 ]; do
         gh*)
             GITHUB_API_TOKEN="$1"
             ;;
+        *)
+            echo "ERROR: Invalid GitHub token. Token must start with \"gh\"."
+            exit 1
+            ;;
         esac
         ;;
     *) ;;
@@ -106,12 +139,19 @@ fi
 case "$VERSION" in
 v[0-9][0-9\.]*) ;;
 *)
-    echo "There was an error trying to check what is the latest version of Mailpit."
+    echo "Unable to determine the latest version of Mailpit."
     echo "Please try again later."
+    if [ -z "$GITHUB_API_TOKEN" ]; then
+        echo "Tip: Set GITHUB_TOKEN to authenticate and avoid GitHub API rate limiting."
+    fi
     exit $EXIT_CODE
     ;;
 esac
 
+TEMP_DIR=""
+cleanup() { [ -n "$TEMP_DIR" ] && rm -rf "$TEMP_DIR"; }
+trap cleanup EXIT
+
 TEMP_DIR="$(mktemp -qd)"
 EXIT_CODE=$?
 # Ensure the temporary directory exists and is a directory.
@@ -198,17 +238,15 @@ if [ $EXIT_CODE -eq 0 ]; then
         fi
     fi
 else
-    echo "ERROR: Changing to temporary directory."
+    echo "ERROR: Could not change 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\"."
+echo "Mailpit ${VERSION} installed successfully to \"$INSTALL_BIN_PATH\"."
 exit 0

internal/htmlcheck/caniemail-data.json

@@ -1,6 +1,6 @@
 {
 	"api_version":"1.0.4",
-	"last_update_date":"2025-11-10 14:54:35 +0000",
+	"last_update_date":"2026-02-16 15:39:06 +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":[
 		{
@@ -270,7 +270,7 @@
 			"last_test_date":"2024-01-17",
 			"test_url":"https://www.caniemail.com/tests/css-backdrop-filter.html",
 			"test_results_url":"https://testi.at/proj/p4r7t9n30o7nh7vvfpn",
-			"stats":{"apple-mail":{"macos":{"10":"y #1","11":"u","12":"u","13":"y #1"},"ios":{"11":"n","12":"n","13":"y #1","14":"y #1","15":"y #1"}},"gmail":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"},"mobile-webmail":{"2024-01":"n"}},"orange":{"desktop-webmail":{"2024-01":"u"},"ios":{"2024-01":"n"},"android":{"2024-01":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-01":"n"},"macos":{"2024-01":"y"},"outlook-com":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"}},"yahoo":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"}},"aol":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"}},"samsung-email":{"android":{"2024-01":"y"}},"sfr":{"desktop-webmail":{"2024-03":"y"},"ios":{"2024-03":"y"},"android":{"2024-03":"y"}},"thunderbird":{"macos":{"2024-01":"u"}},"protonmail":{"desktop-webmail":{"2024-01":"u"},"ios":{"2024-01":"u"},"android":{"2024-01":"u"}},"hey":{"desktop-webmail":{"2024-01":"u"}},"mail-ru":{"desktop-webmail":{"2024-01":"y"}},"fastmail":{"desktop-webmail":{"2024-01":"u"}},"laposte":{"desktop-webmail":{"2024-01":"u"}},"gmx":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"u"},"android":{"2024-01":"u"}},"web-de":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"u"},"android":{"2024-01":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-01":"u"},"android":{"2024-01":"u"}}},
+			"stats":{"apple-mail":{"macos":{"10":"y #1","11":"u","12":"u","13":"y #1"},"ios":{"11":"n","12":"n","13":"y #1","14":"y #1","15":"y #1"}},"gmail":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"},"mobile-webmail":{"2024-01":"n"}},"orange":{"desktop-webmail":{"2024-01":"u"},"ios":{"2024-01":"n"},"android":{"2024-01":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-01":"n"},"macos":{"2024-01":"y"},"outlook-com":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"}},"yahoo":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"}},"aol":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"n"},"android":{"2024-01":"n"}},"samsung-email":{"android":{"2024-01":"y"}},"sfr":{"desktop-webmail":{"2024-03":"y"},"ios":{"2024-03":"y"},"android":{"2024-03":"y"}},"thunderbird":{"macos":{"2024-01":"u"}},"protonmail":{"desktop-webmail":{"2024-01":"y"},"ios":{"2024-01":"y"},"android":{"2024-01":"y"}},"hey":{"desktop-webmail":{"2024-01":"u"}},"mail-ru":{"desktop-webmail":{"2024-01":"y"}},"fastmail":{"desktop-webmail":{"2024-01":"u"}},"laposte":{"desktop-webmail":{"2024-01":"u"}},"gmx":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"u"},"android":{"2024-01":"u"}},"web-de":{"desktop-webmail":{"2024-01":"n"},"ios":{"2024-01":"u"},"android":{"2024-01":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-01":"u"},"android":{"2024-01":"u"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Works with prefix `-webkit`"}
 		},
@@ -665,7 +665,7 @@
 			"description":"Changes the default colors of HTML elements. Useful for when you want an email to display only in a dark color scheme or only a light scheme, regardless of user settings",
 			"url":"https://www.caniemail.com/features/css-color-scheme/",
 			"category":"css",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"dark mode, light mode",
 			"last_test_date":"2023-09-18",
 			"test_url":"https://www.caniemail.com/tests/css-color-scheme.html",
@@ -1006,9 +1006,9 @@
 			"last_test_date":"2021-05-07",
 			"test_url":"https://www.caniemail.com/tests/css-clamp.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/zSEJIfc49LeYUVU5ncqsWBDRRTZlqq01sYRUSICWOs74Y/list",
-			"stats":{"apple-mail":{"macos":{"13":"n","14.0":"y"},"ios":{"13":"n","14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"a #1"},"android":{"2021-05":"a #1"},"mobile-webmail":{"2021-05":"y"}},"orange":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"n","2016":"n","16.80":"n"},"outlook-com":{"2021-05":"n","2023-12":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"samsung-email":{"android":{"6.0":"n"}},"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":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"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":"n","14.0":"y"},"ios":{"13":"n","14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"a #1"},"android":{"2021-05":"a #1"},"mobile-webmail":{"2021-05":"y"}},"orange":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"n","2016":"n","16.80":"n"},"outlook-com":{"2021-05":"n","2023-12":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"samsung-email":{"android":{"6.0":"n","6.2.06.0":"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":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"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"}}},
 			"notes":null,
-			"notes_by_num":{"1":"Partial. Not supported with non Google accounts."}
+			"notes_by_num":{"1":"Partial. Not supported with non Google accounts.","2":"Partial. Not supported with Microsoft accounts."}
 		},
 	
 		{
@@ -1017,7 +1017,7 @@
 			"description":"Enables setting two colors (one for light and the other for dark mode) for a property.",
 			"url":"https://www.caniemail.com/features/css-function-light-dark/",
 			"category":"css",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"dark, light",
 			"last_test_date":"2024-08-14",
 			"test_url":"https://www.caniemail.com/tests/css-function-light-dark.html",
@@ -1038,9 +1038,9 @@
 			"last_test_date":"2021-05-07",
 			"test_url":"https://www.caniemail.com/tests/css-clamp.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/zSEJIfc49LeYUVU5ncqsWBDRRTZlqq01sYRUSICWOs74Y/list",
-			"stats":{"apple-mail":{"macos":{"13":"y","14.0":"y"},"ios":{"13":"y","14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"a #1"},"android":{"2021-05":"a #1"},"mobile-webmail":{"2021-05":"y"}},"orange":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"n","2016":"y","16.80":"n"},"outlook-com":{"2021-05":"n","2023-12":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"samsung-email":{"android":{"6.0":"n"}},"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":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"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","14.0":"y"},"ios":{"13":"y","14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"a #1"},"android":{"2021-05":"a #1"},"mobile-webmail":{"2021-05":"y"}},"orange":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"n","2016":"y","16.80":"n"},"outlook-com":{"2021-05":"n","2023-12":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"samsung-email":{"android":{"6.0":"n","6.2.06.0":"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":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"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"}}},
 			"notes":null,
-			"notes_by_num":{"1":"Partial. Not supported with non Google accounts."}
+			"notes_by_num":{"1":"Partial. Not supported with non Google accounts.","2":"Partial. Not supported with Microsoft accounts."}
 		},
 	
 		{
@@ -1054,9 +1054,9 @@
 			"last_test_date":"2021-05-07",
 			"test_url":"https://www.caniemail.com/tests/css-clamp.html",
 			"test_results_url":"https://app.emailonacid.com/app/acidtest/zSEJIfc49LeYUVU5ncqsWBDRRTZlqq01sYRUSICWOs74Y/list",
-			"stats":{"apple-mail":{"macos":{"13":"y","14.0":"y"},"ios":{"13":"y","14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"a #1"},"android":{"2021-05":"a #1"},"mobile-webmail":{"2021-05":"y"}},"orange":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"n","2016":"y","16.80":"n"},"outlook-com":{"2021-05":"n","2023-12":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"samsung-email":{"android":{"6.0":"n"}},"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":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"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","14.0":"y"},"ios":{"13":"y","14.5":"y"}},"gmail":{"desktop-webmail":{"2021-05":"y"},"ios":{"2021-05":"a #1"},"android":{"2021-05":"a #1"},"mobile-webmail":{"2021-05":"y"}},"orange":{"desktop-webmail":{"2021-05":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"outlook":{"windows":{"2003":"n","2007":"n","2010":"n","2013":"n","2016":"n","2019":"n"},"windows-mail":{"2021-05":"n"},"macos":{"2011":"n","2016":"y","16.80":"n"},"outlook-com":{"2021-05":"n","2023-12":"n"},"ios":{"2021-05":"n"},"android":{"2021-05":"n"}},"samsung-email":{"android":{"6.0":"n","6.2.06.0":"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":"y"}},"fastmail":{"desktop-webmail":{"2021-07":"n"}},"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"}}},
 			"notes":null,
-			"notes_by_num":{"1":"Partial. Not supported with non Google accounts."}
+			"notes_by_num":{"1":"Partial. Not supported with non Google accounts.","2":"Partial. Not supported with Microsoft accounts."}
 		},
 	
 		{
@@ -1118,7 +1118,7 @@
 			"last_test_date":"2024-06-19",
 			"test_url":"https://www.caniemail.com/tests/css-hyphenate-character.html",
 			"test_results_url":"https://testi.at/proj/vr3e1e5bikda08oxc2",
-			"stats":{"apple-mail":{"macos":{"20":"n","21":"n","22":"n","23":"y"},"ios":{"11":"n","12":"n","13":"n","14":"n","15":"y"}},"gmail":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"},"mobile-webmail":{"2024-06":"n"}},"orange":{"desktop-webmail":{"2024-06":"u"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-06":"n"},"macos":{"2024-06":"n"},"outlook-com":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"}},"yahoo":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"}},"aol":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"}},"samsung-email":{"android":{"2024-06":"y"}},"sfr":{"desktop-webmail":{"2024-03":"u"},"ios":{"2024-03":"u"},"android":{"2024-03":"u"}},"protonmail":{"desktop-webmail":{"2024-06":"u"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"hey":{"desktop-webmail":{"2024-06":"u"}},"mail-ru":{"desktop-webmail":{"2024-06":"a #1"}},"fastmail":{"desktop-webmail":{"2024-06":"u"}},"laposte":{"desktop-webmail":{"2024-06":"u"}},"gmx":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"web-de":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-06":"u"},"android":{"2024-06":"u"}}},
+			"stats":{"apple-mail":{"macos":{"20":"n","21":"n","22":"n","23":"y"},"ios":{"11":"n","12":"n","13":"n","14":"n","15":"y"}},"gmail":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"},"mobile-webmail":{"2024-06":"n"}},"orange":{"desktop-webmail":{"2024-06":"u"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-06":"n"},"macos":{"2024-06":"n"},"outlook-com":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"}},"yahoo":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"}},"aol":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"n"},"android":{"2024-06":"n"}},"samsung-email":{"android":{"2024-06":"y"}},"sfr":{"desktop-webmail":{"2024-03":"u"},"ios":{"2024-03":"u"},"android":{"2024-03":"u"}},"protonmail":{"desktop-webmail":{"2024-06":"y"},"ios":{"2024-06":"y"},"android":{"2024-06":"y"}},"hey":{"desktop-webmail":{"2024-06":"u"}},"mail-ru":{"desktop-webmail":{"2024-06":"a #1"}},"fastmail":{"desktop-webmail":{"2024-06":"u"}},"laposte":{"desktop-webmail":{"2024-06":"u"}},"gmx":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"web-de":{"desktop-webmail":{"2024-06":"n"},"ios":{"2024-06":"u"},"android":{"2024-06":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-06":"u"},"android":{"2024-06":"u"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Partial. Does not support encoded character values"}
 		},
@@ -1177,7 +1177,7 @@
 			"description":"",
 			"url":"https://www.caniemail.com/features/css-inline-size/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":null,
 			"last_test_date":"2019-02-28",
 			"test_url":"https://www.caniemail.com/tests/css-box-model.html",
@@ -1353,7 +1353,7 @@
 			"description":null,
 			"url":"https://www.caniemail.com/features/css-list-style/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":null,
 			"last_test_date":"2020-04-20",
 			"test_url":"https://www.caniemail.com/tests/css-list.html",
@@ -1614,9 +1614,9 @@
 			"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","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"}}},
+			"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":"y"},"ios":{"2023-08":"a #5"},"android":{"2023-08":"a #5"}},"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."}
+			"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.","5":"Partial. `@media` is not fully supported, and `& & &` syntax not supported"}
 		},
 	
 		{
@@ -1678,7 +1678,7 @@
 			"last_test_date":"2024-06-13",
 			"test_url":"https://www.caniemail.com/tests/css-widows.html",
 			"test_results_url":"https://testi.at/proj/6vd8udzx1b5l1vrnsr",
-			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"n #4"},"ios":{"2024-05":"n"},"android":{"2024-05":"n #3"},"mobile-webmail":{"2024-05":"n #1 #2"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-05":"n"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"aol":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"protonmail":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y #4"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2021-08":"u"}},"gmx":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
+			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"n #4"},"ios":{"2024-05":"n"},"android":{"2024-05":"n #3"},"mobile-webmail":{"2024-05":"n #1 #2"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-05":"n"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"aol":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"protonmail":{"desktop-webmail":{"2024-05":"y #4"},"ios":{"2024-05":"y #4"},"android":{"2024-05":"y #4"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y #4"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2021-08":"u"}},"gmx":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Buggy. `columns` property is stripped which is required for `orphans` to work","2":"Buggy. `orphans` property value is replaced by `auto`","3":"Not supported, but Gmail's default styles on the email message container includes the `orphans` property. These values are inherited by children elements","4":"Webmail rendering depends on browser support"}
 		},
@@ -1859,6 +1859,22 @@
 			"notes_by_num":{"1":"Partial. Only supported on type selectors.","2":"Not supported. `<input>` elements are transformed into `<noinput>`."}
 		},
 	
+		{
+			"slug":"css-pseudo-class-default",
+			"title":":default",
+			"description":"Selects form elements that are the default in a group of related elements.",
+			"url":"https://www.caniemail.com/features/css-pseudo-class-default/",
+			"category":"css",
+			"tags":["accessibility"],
+			"keywords":"pseudo-class, form",
+			"last_test_date":"2026-02-05",
+			"test_url":"https://www.caniemail.com/tests/css-pseudo-class-default.html",
+			"test_results_url":"https://testi.at/proj/7ov4sbxz1krv07gkf5",
+			"stats":{"apple-mail":{"macos":{"12":"y","26":"y"},"ios":{"11":"y","26":"y"}},"gmail":{"desktop-webmail":{"2026-02":"n"},"ios":{"2026-02":"n"},"android":{"2026-02":"n"},"mobile-webmail":{"2026-02":"n"}},"orange":{"desktop-webmail":{"2026-02":"u"},"ios":{"2026-02":"u"},"android":{"2026-02":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n","2024":"n"},"windows-mail":{"2026-02":"n"},"macos":{"16.105.2":"y"},"outlook-com":{"2026-02":"a #1"},"ios":{"2026-02":"y"},"android":{"2026-02":"y"}},"samsung-email":{"android":{"6.0":"u"}},"sfr":{"desktop-webmail":{"2026-02":"u"},"ios":{"2026-02":"u"},"android":{"2026-02":"u"}},"thunderbird":{"macos":{"147.0.1":"y"}},"aol":{"desktop-webmail":{"2026-02":"y"},"ios":{"2026-02":"y"},"android":{"2026-02":"y"}},"yahoo":{"desktop-webmail":{"2026-02":"y"},"ios":{"2026-02":"y"},"android":{"2026-02":"y"}},"protonmail":{"desktop-webmail":{"2026-02":"n"},"ios":{"2026-02":"n"},"android":{"2026-02":"n"}},"hey":{"desktop-webmail":{"2026-02":"u"}},"mail-ru":{"desktop-webmail":{"2026-02":"y"}},"fastmail":{"desktop-webmail":{"2026-02":"u"}},"laposte":{"desktop-webmail":{"2026-02":"u"}},"free-fr":{"desktop-webmail":{"2026-02":"u"}},"t-online-de":{"desktop-webmail":{"2026-02":"n"}},"gmx":{"desktop-webmail":{"2026-02":"n"},"ios":{"2026-02":"y"},"android":{"2026-02":"n"}},"web-de":{"desktop-webmail":{"2026-02":"n"},"ios":{"2026-02":"u"},"android":{"2026-02":"u"}},"ionos-1and1":{"desktop-webmail":{"2026-02":"u"},"android":{"2026-02":"u"}}},
+			"notes":"Depends on device/browser support. Some devices/browsers do not support styling on &lt;option&gt;.",
+			"notes_by_num":{"1":"Works on input[radio] and input[checkbox] only."}
+		},
+	
 		{
 			"slug":"css-pseudo-class-first-child",
 			"title":":first-child",
@@ -2558,7 +2574,7 @@
 			"last_test_date":"2022-07-21",
 			"test_url":"https://www.caniemail.com/tests/css-tab-size.html",
 			"test_results_url":"https://testi.at/proj/Rk9H1m9ubAYH1DwUqZu8G",
-			"stats":{"apple-mail":{"macos":{"16":"y","17":"y","18":"y","19":"y","20":"y","21":"y"},"ios":{"11":"y","12":"y","13":"y","14":"y","15":"y"}},"gmail":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"},"mobile-webmail":{"2022-07":"u"}},"orange":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-07":"n"},"macos":{"2022-07":"y","16.80":"y #2"},"outlook-com":{"2022-07":"y #2","2024-01":"y #2"},"ios":{"2022-07":"y"},"android":{"2022-07":"n"}},"yahoo":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"aol":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"samsung-email":{"android":{"2022-07":"y"}},"sfr":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"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":"n #1"}},"fastmail":{"desktop-webmail":{"2022-07":"u"}},"gmx":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"n"}},"web-de":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"n"}},"ionos-1and1":{"desktop-webmail":{"2022-09":"y"},"android":{"2022-09":"n"}}},
+			"stats":{"apple-mail":{"macos":{"16":"y","17":"y","18":"y","19":"y","20":"y","21":"y"},"ios":{"11":"y","12":"y","13":"y","14":"y","15":"y"}},"gmail":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"},"mobile-webmail":{"2022-07":"u"}},"orange":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"outlook":{"windows":{"2007":"n","2010":"n","2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2022-07":"n"},"macos":{"2022-07":"y","16.80":"y #2"},"outlook-com":{"2022-07":"y #2","2024-01":"y #2"},"ios":{"2022-07":"y"},"android":{"2022-07":"n"}},"yahoo":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"n"},"android":{"2022-07":"n"}},"aol":{"desktop-webmail":{"2022-07":"n"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"samsung-email":{"android":{"2022-07":"y"}},"sfr":{"desktop-webmail":{"2022-07":"u"},"ios":{"2022-07":"u"},"android":{"2022-07":"u"}},"protonmail":{"desktop-webmail":{"2022-07":"y"},"ios":{"2022-07":"y"},"android":{"2022-07":"y"}},"hey":{"desktop-webmail":{"2022-07":"u"}},"mail-ru":{"desktop-webmail":{"2022-07":"n #1"}},"fastmail":{"desktop-webmail":{"2022-07":"u"}},"gmx":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"n"}},"web-de":{"desktop-webmail":{"2022-09":"n"},"ios":{"2022-09":"y"},"android":{"2022-09":"n"}},"ionos-1and1":{"desktop-webmail":{"2022-09":"y"},"android":{"2022-09":"n"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Supports `tab-size` but doesn't support `white-space`. Therefore, `tab-size` is not effectively visible","2":"Supports `tab-size` but strips the tab character `&#0009;`"}
 		},
@@ -2585,7 +2601,7 @@
 			"description":"The `text-align-last` CSS property sets how the last line of a block or a line right before a forced line break is aligned.",
 			"url":"https://www.caniemail.com/features/css-text-align-last/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"align, align-last",
 			"last_test_date":"2022-08-31",
 			"test_url":"https://www.caniemail.com/tests/css-text-align-last.html",
@@ -2601,7 +2617,7 @@
 			"description":"Sets the horizontal alignment of the content.",
 			"url":"https://www.caniemail.com/features/css-text-align/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"align",
 			"last_test_date":"2021-09-24",
 			"test_url":"https://www.caniemail.com/tests/css-text-align.html",
@@ -2697,7 +2713,7 @@
 			"description":"Tested with the values `overline`, `underline` and `line-through`.",
 			"url":"https://www.caniemail.com/features/css-text-decoration/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":"underline",
 			"last_test_date":"2019-02-28",
 			"test_url":"https://www.caniemail.com/tests/css-text-decoration.html",
@@ -2825,7 +2841,7 @@
 			"description":"Each of the six `text-transform` values defined by MDN (`capitalize`, `uppercase`, `lowercase`, `none`, `full-width`, `full-size-kana`).",
 			"url":"https://www.caniemail.com/features/css-text-transform/",
 			"category":"css",
-			"tags":[],
+			"tags":["i18n"],
 			"keywords":null,
 			"last_test_date":"2021-09-19",
 			"test_url":"https://www.caniemail.com/tests/css-text-transform.html",
@@ -3198,9 +3214,9 @@
 			"last_test_date":"2024-02-14",
 			"test_url":"https://www.caniemail.com/tests/css-user-select.html",
 			"test_results_url":"https://testi.at/proj/9zjptajgcxyzc74ockp",
-			"stats":{"apple-mail":{"macos":{"2024-02":"y #1"},"ios":{"2024-02":"a #1 #2"}},"gmail":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n #3"},"android":{"2024-02":"n"},"mobile-webmail":{"2024-02":"u"}},"orange":{"desktop-webmail":{"2024-02":"u"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-02":"n"},"macos":{"2024-02":"n #3"},"outlook-com":{"2024-02":"n #3"},"ios":{"2024-02":"n #3"},"android":{"2024-02":"n"}},"yahoo":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n"},"android":{"2024-02":"n"}},"aol":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n"},"android":{"2024-02":"n"}},"samsung-email":{"android":{"2024-02":"y"}},"sfr":{"desktop-webmail":{"2024-02":"u"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"thunderbird":{"macos":{"2024-02":"u"}},"protonmail":{"desktop-webmail":{"2024-02":"u"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"hey":{"desktop-webmail":{"2024-02":"u"}},"mail-ru":{"desktop-webmail":{"2024-02":"y"}},"fastmail":{"desktop-webmail":{"2024-02":"u"}},"laposte":{"desktop-webmail":{"2024-02":"u"}},"gmx":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"web-de":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n"},"android":{"2024-02":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-02":"u"},"android":{"2024-02":"u"}}},
+			"stats":{"apple-mail":{"macos":{"2024-02":"y #1"},"ios":{"2024-02":"a #1 #2"}},"gmail":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n #3"},"android":{"2024-02":"n"},"mobile-webmail":{"2024-02":"u"}},"orange":{"desktop-webmail":{"2024-02":"u"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-02":"n"},"macos":{"2024-02":"n #3"},"outlook-com":{"2024-02":"n #3"},"ios":{"2024-02":"n #3"},"android":{"2024-02":"n"}},"yahoo":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n"},"android":{"2024-02":"n"}},"aol":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n"},"android":{"2024-02":"n"}},"samsung-email":{"android":{"2024-02":"y"}},"sfr":{"desktop-webmail":{"2024-02":"u"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"thunderbird":{"macos":{"2024-02":"u"}},"protonmail":{"desktop-webmail":{"2024-02":"a #2 #4"},"ios":{"2024-02":"a #2 #4"},"android":{"2024-02":"a #2 #4"}},"hey":{"desktop-webmail":{"2024-02":"u"}},"mail-ru":{"desktop-webmail":{"2024-02":"y"}},"fastmail":{"desktop-webmail":{"2024-02":"u"}},"laposte":{"desktop-webmail":{"2024-02":"u"}},"gmx":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"u"},"android":{"2024-02":"u"}},"web-de":{"desktop-webmail":{"2024-02":"n #3"},"ios":{"2024-02":"n"},"android":{"2024-02":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-02":"u"},"android":{"2024-02":"u"}}},
 			"notes":null,
-			"notes_by_num":{"1":"Works with `-webkit` prefix","2":"`all` value does not work","3":"Property is stripped from style tag"}
+			"notes_by_num":{"1":"Works with `-webkit` prefix","2":"`all` value does not work","3":"Property is stripped from style tag","4":"`none` value does not work, client allow to select text anyway"}
 		},
 	
 		{
@@ -3262,7 +3278,7 @@
 			"last_test_date":"2024-09-04",
 			"test_url":"https://www.caniemail.com/tests/css-white-space-collapse.html",
 			"test_results_url":"https://testi.at/proj/e6y4s3zytp5kty7kcg",
-			"stats":{"apple-mail":{"macos":{"10":"n","11":"n","12":"n","13":"n","14":"y #1"},"ios":{"15":"y #1"}},"gmail":{"desktop-webmail":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"},"mobile-webmail":{"2024-09":"n"}},"orange":{"desktop-webmail":{"2024-09":"u"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-09":"n"},"macos":{"2024-09":"n"},"outlook-com":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"}},"yahoo":{"desktop-webmail":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"}},"aol":{"desktop-webmail":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"}},"samsung-email":{"android":{"2024-09":"y #1"}},"sfr":{"desktop-webmail":{"2024-03":"u"},"ios":{"2024-03":"u"},"android":{"2024-03":"u"}},"protonmail":{"desktop-webmail":{"2024-09":"u"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"hey":{"desktop-webmail":{"2024-09":"u"}},"mail-ru":{"desktop-webmail":{"2024-09":"y #1"}},"fastmail":{"desktop-webmail":{"2024-09":"u"}}},
+			"stats":{"apple-mail":{"macos":{"10":"n","11":"n","12":"n","13":"n","14":"y #1"},"ios":{"15":"y #1"}},"gmail":{"desktop-webmail":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"},"mobile-webmail":{"2024-09":"n"}},"orange":{"desktop-webmail":{"2024-09":"u"},"ios":{"2024-09":"u"},"android":{"2024-09":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-09":"n"},"macos":{"2024-09":"n"},"outlook-com":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"}},"yahoo":{"desktop-webmail":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"}},"aol":{"desktop-webmail":{"2024-09":"n"},"ios":{"2024-09":"n"},"android":{"2024-09":"n"}},"samsung-email":{"android":{"2024-09":"y #1"}},"sfr":{"desktop-webmail":{"2024-03":"u"},"ios":{"2024-03":"u"},"android":{"2024-03":"u"}},"protonmail":{"desktop-webmail":{"2024-09":"y"},"ios":{"2024-09":"y"},"android":{"2024-09":"y"}},"hey":{"desktop-webmail":{"2024-09":"u"}},"mail-ru":{"desktop-webmail":{"2024-09":"y #1"}},"fastmail":{"desktop-webmail":{"2024-09":"u"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Partial. `preserve-spaces` value works only on Firefox."}
 		},
@@ -3294,7 +3310,7 @@
 			"last_test_date":"2024-05-03",
 			"test_url":"https://www.caniemail.com/tests/css-widows.html",
 			"test_results_url":"https://testi.at/proj/6vd8udzx1b5l1vrnsr",
-			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"n #4"},"ios":{"2024-05":"n"},"android":{"2024-05":"n #3"},"mobile-webmail":{"2024-05":"n #1 #2"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-05":"n"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"aol":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"protonmail":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y #4"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2021-08":"u"}},"gmx":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
+			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"n #4"},"ios":{"2024-05":"n"},"android":{"2024-05":"n #3"},"mobile-webmail":{"2024-05":"n #1 #2"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"n","2016":"n","2019":"n","2021":"n"},"windows-mail":{"2024-05":"n"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"aol":{"desktop-webmail":{"2024-05":"n"},"ios":{"2024-05":"n"},"android":{"2024-05":"n"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"protonmail":{"desktop-webmail":{"2024-05":"y #4"},"ios":{"2024-05":"y #4"},"android":{"2024-05":"y #4"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y #4"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2021-08":"u"}},"gmx":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"n #1 #4"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
 			"notes":null,
 			"notes_by_num":{"1":"Buggy. `columns` property is stripped which is required for `widows` to work","2":"Buggy. `widows` property value is replaced by `auto`","3":"Not supported, but Gmail's default styles on the email message container includes the `widows` property. These values are inherited by children elements","4":"Webmail rendering depends on browser support"}
 		},
@@ -3625,7 +3641,7 @@
 			"description":null,
 			"url":"https://www.caniemail.com/features/html-blockquote/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":null,
 			"last_test_date":"2020-05-08",
 			"test_url":"https://www.caniemail.com/tests/html-semantics.html",
@@ -3694,7 +3710,7 @@
 			"last_test_date":"2024-05-01",
 			"test_url":"https://www.caniemail.com/tests/html-cellspacing.html",
 			"test_results_url":"https://testi.at/proj/rlpatnzxf3eyce9oc3",
-			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"},"mobile-webmail":{"2024-05":"y"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"y","2016":"y","2019":"y","2021":"y"},"windows-mail":{"2024-05":"y"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y","2024-01":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"aol":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"thunderbird":{"macos":{"2024-05":"y"}},"protonmail":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2024-05":"u"}},"gmx":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
+			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"},"mobile-webmail":{"2024-05":"y"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"y","2016":"y","2019":"y","2021":"y"},"windows-mail":{"2024-05":"y"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y","2024-01":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"aol":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"thunderbird":{"macos":{"2024-05":"y"}},"protonmail":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2024-05":"u"}},"gmx":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
 			"notes":null,
 			"notes_by_num":null
 		},
@@ -3710,7 +3726,7 @@
 			"last_test_date":"2024-05-01",
 			"test_url":"https://www.caniemail.com/tests/html-cellspacing.html",
 			"test_results_url":"https://testi.at/proj/rlpatnzxf3eyce9oc3",
-			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"},"mobile-webmail":{"2024-05":"y"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"y","2016":"y","2019":"y","2021":"y"},"windows-mail":{"2024-05":"y"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y","2024-01":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"aol":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"thunderbird":{"macos":{"2024-05":"y"}},"protonmail":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2024-05":"u"}},"gmx":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
+			"stats":{"apple-mail":{"macos":{"2024-05":"y"},"ios":{"2024-05":"y"}},"gmail":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"},"mobile-webmail":{"2024-05":"y"}},"orange":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"outlook":{"windows":{"2013":"y","2016":"y","2019":"y","2021":"y"},"windows-mail":{"2024-05":"y"},"macos":{"2024-05":"y"},"outlook-com":{"2024-05":"y","2024-01":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"yahoo":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"aol":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"samsung-email":{"android":{"2024-05":"y"}},"sfr":{"desktop-webmail":{"2024-05":"u"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"thunderbird":{"macos":{"2024-05":"y"}},"protonmail":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"y"},"android":{"2024-05":"y"}},"hey":{"desktop-webmail":{"2024-05":"u"}},"mail-ru":{"desktop-webmail":{"2024-05":"y"}},"fastmail":{"desktop-webmail":{"2024-05":"u"}},"laposte":{"desktop-webmail":{"2024-05":"u"}},"gmx":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"web-de":{"desktop-webmail":{"2024-05":"y"},"ios":{"2024-05":"u"},"android":{"2024-05":"u"}},"ionos-1and1":{"desktop-webmail":{"2024-05":"u"},"android":{"2024-05":"u"}}},
 			"notes":null,
 			"notes_by_num":null
 		},
@@ -3769,7 +3785,7 @@
 			"description":"It is used to identify a term that is going to be described within the content.",
 			"url":"https://www.caniemail.com/features/html-dfn/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":null,
 			"last_test_date":"2023-09-11",
 			"test_url":"https://www.caniemail.com/tests/html-dfn.html",
@@ -3865,7 +3881,7 @@
 			"description":"Support for headings elements in HTML: `<h1>`, `<h2>`, `<h3>`, `<h4>`, `<h5>`, `<h6>`.",
 			"url":"https://www.caniemail.com/features/html-h1-h6/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"headings, h1, h2, h3, h4, h5, h6",
 			"last_test_date":"2020-05-08",
 			"test_url":"https://www.caniemail.com/tests/html-semantics.html",
@@ -4089,7 +4105,7 @@
 			"description":"Support for lists in HTML: `<ul>`, `<ol>`, `<li>`, `<dl>`, `<dt>` and `<dd>` elements.",
 			"url":"https://www.caniemail.com/features/html-lists/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"ul, ol, li, dl, dt, dd",
 			"last_test_date":"2024-02-17",
 			"test_url":"https://www.caniemail.com/tests/css-list.html",
@@ -4153,7 +4169,7 @@
 			"description":"Changes the default colors of HTML elements. Useful for when you want an email to display only in a dark color scheme or only a light scheme, regardless of user settings. Equivalent to setting the color-scheme CSS property on the root element",
 			"url":"https://www.caniemail.com/features/html-meta-color-scheme/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"dark-mode",
 			"last_test_date":"2023-09-18",
 			"test_url":"https://www.caniemail.com/tests/html-meta-color-scheme.html",
@@ -4201,7 +4217,7 @@
 			"description":null,
 			"url":"https://www.caniemail.com/features/html-p/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"paragraph",
 			"last_test_date":"2020-05-08",
 			"test_url":"https://www.caniemail.com/tests/html-semantics.html",
@@ -4345,7 +4361,7 @@
 			"description":"",
 			"url":"https://www.caniemail.com/features/html-ruby/",
 			"category":"html",
-			"tags":["i18n"],
+			"tags":["i18n","accessibility"],
 			"keywords":null,
 			"last_test_date":"2019-02-28",
 			"test_url":"https://www.caniemail.com/tests/HTML5.html",
@@ -4377,7 +4393,7 @@
 			"description":"This includes support for `<article>`, `<aside>`, `<details>`, `<figcaption>`, `<figure>`, `<footer>`, `<header>`, `<main>`, `<mark>`, `<nav>`, `<section>`, `<summary>`, `<time>` elements.",
 			"url":"https://www.caniemail.com/features/html-semantics/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":"article, aside, details, figcaption, figure, footer, header, main, mark, nav, section, summary, time",
 			"last_test_date":"2019-07-29",
 			"test_url":"https://www.caniemail.com/tests/html-semantics.html",
@@ -4505,7 +4521,7 @@
 			"description":null,
 			"url":"https://www.caniemail.com/features/html-table/",
 			"category":"html",
-			"tags":[],
+			"tags":["accessibility"],
 			"keywords":null,
 			"last_test_date":"2019-09-15",
 			"test_url":"https://www.caniemail.com/tests/html-table.html",

internal/htmlcheck/caniemail.go

@@ -42,19 +42,19 @@ type CanIEmail struct {
 
 // JSONResult struct for CanIEmail Data
 type JSONResult struct {
-	Slug           string                 `json:"slug"`
-	Title          string                 `json:"title"`
-	Description    string                 `json:"description"`
-	URL            string                 `json:"url"`
-	Category       string                 `json:"category"`
-	Tags           []string               `json:"tags"`
-	Keywords       string                 `json:"keywords"`
-	LastTestDate   string                 `json:"last_test_date"`
-	TestURL        string                 `json:"test_url"`
-	TestResultsURL string                 `json:"test_results_url"`
-	Stats          map[string]interface{} `json:"stats"`
-	Notes          string                 `json:"notes"`
-	NotesByNumber  map[string]string      `json:"notes_by_num"`
+	Slug           string            `json:"slug"`
+	Title          string            `json:"title"`
+	Description    string            `json:"description"`
+	URL            string            `json:"url"`
+	Category       string            `json:"category"`
+	Tags           []string          `json:"tags"`
+	Keywords       string            `json:"keywords"`
+	LastTestDate   string            `json:"last_test_date"`
+	TestURL        string            `json:"test_url"`
+	TestResultsURL string            `json:"test_results_url"`
+	Stats          map[string]any    `json:"stats"`
+	Notes          string            `json:"notes"`
+	NotesByNumber  map[string]string `json:"notes_by_num"`
 }
 
 // Load the JSON data

internal/htmlcheck/inline_test.go

@@ -72,7 +72,7 @@ func TestInlineStyleDetection(t *testing.T) {
 	}
 }
 
-func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
+func assertEqual(t *testing.T, a any, b any, message string) {
 	if a == b {
 		return
 	}

internal/htmlcheck/main.go

@@ -141,11 +141,11 @@ func (c CanIEmail) getTest(k string) (Warning, error) {
 			continue
 		}
 
-		for platform, clients := range stats.(map[string]interface{}) {
+		for platform, clients := range stats.(map[string]any) {
 			if len(LimitPlatforms) != 0 && !tools.InArray(platform, LimitPlatforms) {
 				continue
 			}
-			for version, support := range clients.(map[string]interface{}) {
+			for version, support := range clients.(map[string]any) {
 				s := Result{}
 				s.Name = fmt.Sprintf("%s %s (%s)", c.NiceNames.Family[family], c.NiceNames.Platform[platform], version)
 				s.Family = family

internal/htmlcheck/platforms.go

@@ -1,7 +1,7 @@
 package htmlcheck
 
 import (
-	"sort"
+	"slices"
 
 	"github.com/axllent/mailpit/internal/tools"
 )
@@ -18,7 +18,7 @@ func Platforms() (map[string][]string, error) {
 	for _, t := range cie.Data {
 		for family, stats := range t.Stats {
 			niceFamily := cie.NiceNames.Family[family]
-			for platform := range stats.(map[string]interface{}) {
+			for platform := range stats.(map[string]any) {
 				c, found := data[platform]
 				if !found {
 					data[platform] = []string{}
@@ -32,9 +32,7 @@ func Platforms() (map[string][]string, error) {
 	}
 
 	for group, clients := range data {
-		sort.Slice(clients, func(i, j int) bool {
-			return clients[i] < clients[j]
-		})
+		slices.Sort(clients)
 		data[group] = clients
 	}
 

internal/linkcheck/status.go

@@ -1,14 +1,20 @@
 package linkcheck
 
 import (
+	"context"
 	"crypto/tls"
+	"errors"
+	"fmt"
+	"net"
 	"net/http"
 	"regexp"
+	"strings"
 	"sync"
 	"time"
 
 	"github.com/axllent/mailpit/config"
 	"github.com/axllent/mailpit/internal/logger"
+	"github.com/axllent/mailpit/internal/tools"
 )
 
 func getHTTPStatuses(links []string, followRedirects bool) []Link {
@@ -34,6 +40,10 @@ func getHTTPStatuses(links []string, followRedirects bool) []Link {
 			if err != nil {
 				l.StatusCode = 0
 				l.Status = httpErrorSummary(err)
+				if strings.Contains(l.Status, "private/reserved address") {
+					l.Status = "Blocked private/reserved address"
+					l.StatusCode = 451
+				}
 			} else {
 				l.StatusCode = code
 				l.Status = http.StatusText(code)
@@ -57,23 +67,38 @@ func getHTTPStatuses(links []string, followRedirects bool) []Link {
 
 // Do a HEAD request to return HTTP status code
 func doHead(link string, followRedirects bool) (int, error) {
+	if !tools.IsValidLinkURL(link) {
+		return 0, fmt.Errorf("invalid URL: %s", link)
+	}
 
-	timeout := time.Duration(10 * time.Second)
+	dialer := &net.Dialer{
+		Timeout:   10 * time.Second,
+		KeepAlive: 30 * time.Second,
+	}
 
-	tr := &http.Transport{}
+	tr := &http.Transport{
+		DialContext: safeDialContext(dialer),
+	}
 
 	if config.AllowUntrustedTLS {
+		// user has explicitly allowed untrusted TLS, so we will not verify it for link checks
 		tr.TLSClientConfig = &tls.Config{InsecureSkipVerify: true} // #nosec
 	}
 
 	client := http.Client{
-		Timeout:   timeout,
+		Timeout:   10 * time.Second,
 		Transport: tr,
 		CheckRedirect: func(req *http.Request, via []*http.Request) error {
-			if followRedirects {
-				return nil
+			if len(via) >= 3 {
+				return errors.New("too many redirects")
 			}
-			return http.ErrUseLastResponse
+			if !followRedirects {
+				return http.ErrUseLastResponse
+			}
+			if !tools.IsValidLinkURL(req.URL.String()) {
+				return fmt.Errorf("blocked redirect to invalid URL: %s", req.URL)
+			}
+			return nil
 		},
 	}
 
@@ -92,7 +117,6 @@ func doHead(link string, followRedirects bool) (int, error) {
 		}
 
 		return 0, err
-
 	}
 
 	return res.StatusCode, nil
@@ -107,8 +131,33 @@ func httpErrorSummary(err error) string {
 	if !re.MatchString(e) {
 		return e
 	}
-
 	parts := re.FindAllStringSubmatch(e, -1)
 
 	return parts[0][len(parts[0])-1]
 }
+
+// SafeDialContext is a custom dialer that checks if the resolved IP addresses are internal before allowing the connection.
+func safeDialContext(dialer *net.Dialer) func(ctx context.Context, network, address string) (net.Conn, error) {
+	return func(ctx context.Context, network, address string) (net.Conn, error) {
+		host, port, err := net.SplitHostPort(address)
+		if err != nil {
+			return nil, err
+		}
+
+		ips, err := net.DefaultResolver.LookupIPAddr(ctx, host)
+		if err != nil {
+			return nil, err
+		}
+
+		if !config.AllowInternalHTTPRequests {
+			for _, ip := range ips {
+				if tools.IsInternalIP(ip.IP) {
+					logger.Log().Warnf("[link-check] Blocked HEAD request to private/reserved address: %s (%s)", host, ip)
+					return nil, fmt.Errorf("blocked request to %s (%s): private/reserved address", host, ip)
+				}
+			}
+		}
+
+		return dialer.DialContext(ctx, network, net.JoinHostPort(ips[0].IP.String(), port))
+	}
+}

internal/logger/logger.go

@@ -61,7 +61,7 @@ func Log() *logrus.Logger {
 }
 
 // PrettyPrint for debugging
-func PrettyPrint(i interface{}) {
+func PrettyPrint(i any) {
 	s, _ := json.MarshalIndent(i, "", "\t")
 	fmt.Println(string(s))
 }

internal/pop3/pop3_test.go

@@ -362,11 +362,11 @@ func randRange(min, max int) int {
 }
 
 func insertEmailData(t *testing.T) {
-	for i := 0; i < 50; i++ {
+	for i := range 50 {
 		msg := enmime.Builder().
 			From(fmt.Sprintf("From %d", i), fmt.Sprintf("from-%d@example.com", i)).
 			Subject(fmt.Sprintf("Subject line %d end", i)).
-			Text([]byte(fmt.Sprintf("This is the email body %d <jdsauk;dwqmdqw;>.", i))).
+			Text(fmt.Appendf(nil, "This is the email body %d <jdsauk;dwqmdqw;>.", i)).
 			To(fmt.Sprintf("To %d", i), fmt.Sprintf("to-%d@example.com", i))
 
 		env, err := msg.Build()
@@ -397,7 +397,7 @@ func insertEmailData(t *testing.T) {
 	}
 }
 
-func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
+func assertEqual(t *testing.T, a any, b any, message string) {
 	if a == b {
 		return
 	}

internal/pop3client/client.go

@@ -138,7 +138,7 @@ func (c *Conn) Send(b string) error {
 // in case of single line responses, or a help message followed by multiple lines of actual response
 // data in case of multiline responses.
 // See https://www.shellhacks.com/retrieve-email-pop3-server-command-line/ for examples.
-func (c *Conn) Cmd(cmd string, isMulti bool, args ...interface{}) (*bytes.Buffer, error) {
+func (c *Conn) Cmd(cmd string, isMulti bool, args ...any) (*bytes.Buffer, error) {
 	var cmdLine string
 
 	// Repeat a %v to format each arg.
@@ -441,12 +441,12 @@ func parseResp(b []byte) ([]byte, error) {
 
 	if bytes.Equal(b, respOK) {
 		return nil, nil
-	} else if bytes.HasPrefix(b, respOKInfo) {
-		return bytes.TrimPrefix(b, respOKInfo), nil
+	} else if after, ok := bytes.CutPrefix(b, respOKInfo); ok {
+		return after, nil
 	} else if bytes.Equal(b, respErr) {
 		return nil, errors.New("unknown error (no info specified in response)")
-	} else if bytes.HasPrefix(b, respErrInfo) {
-		return nil, errors.New(string(bytes.TrimPrefix(b, respErrInfo)))
+	} else if after, ok := bytes.CutPrefix(b, respErrInfo); ok {
+		return nil, errors.New(string(after))
 	}
 
 	return nil, fmt.Errorf("unknown response: %s. Neither -ERR, nor +OK", string(b))

internal/smtpd/forward.go

@@ -108,9 +108,9 @@ func forward(from string, msg []byte) error {
 		return fmt.Errorf("error response to MAIL command: %s", err.Error())
 	}
 
-	to := strings.Split(config.SMTPForwardConfig.To, ",")
+	to := strings.SplitSeq(config.SMTPForwardConfig.To, ",")
 
-	for _, addr := range 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())
 			if config.SMTPForwardConfig.ForwardSMTPErrors {

internal/smtpd/smtpd.go

@@ -337,7 +337,7 @@ func (srv *Server) Shutdown(ctx context.Context) error {
 	timer := time.NewTimer(100 * time.Millisecond)
 	defer timer.Stop()
 
-	for i := 0; i < 300; i++ {
+	for range 300 {
 		// wait for open sessions to close
 		if atomic.LoadInt32(&srv.openSessions) == 0 {
 			break
@@ -636,8 +636,8 @@ loop:
 		case "XCLIENT":
 			s.xClient = args
 			if s.xClientTrust {
-				xCArgs := strings.Split(args, " ")
-				for _, xCArg := range xCArgs {
+				xCArgs := strings.SplitSeq(args, " ")
+				for xCArg := range xCArgs {
 					xCParse := strings.Split(strings.TrimSpace(xCArg), "=")
 					if strings.ToUpper(xCParse[0]) == "ADDR" && (net.ParseIP(xCParse[1]) != nil) {
 						s.xClientADDR = xCParse[1]
@@ -786,7 +786,7 @@ loop:
 }
 
 // Wrapper function for writing a complete line to the socket.
-func (s *session) writef(format string, args ...interface{}) {
+func (s *session) writef(format string, args ...any) {
 	if s.srv.Timeout > 0 {
 		_ = s.conn.SetWriteDeadline(time.Now().Add(s.srv.Timeout))
 	}
@@ -831,9 +831,9 @@ func (s *session) readLine() (string, error) {
 
 // Parse a line read from the socket.
 func (s *session) parseLine(line string) (verb string, args string) {
-	if idx := strings.Index(line, " "); idx != -1 {
-		verb = strings.ToUpper(line[:idx])
-		args = strings.TrimSpace(line[idx+1:])
+	if before, after, ok := strings.Cut(line, " "); ok {
+		verb = strings.ToUpper(before)
+		args = strings.TrimSpace(after)
 	} else {
 		verb = strings.ToUpper(line)
 		args = ""
@@ -928,6 +928,10 @@ func (s *session) makeEHLOResponse() (response string) {
 	}
 
 	response += "250-ENHANCEDSTATUSCODES\r\n"
+	// RFC 6531 specifies that the presence of SMTPUTF8 should include 8BITMIME
+	// "Servers offering this extension MUST provide support for, and announce, the 8BITMIME extension"
+	// https://www.rfc-editor.org/rfc/rfc6531#section-3.1:
+	response += "250-8BITMIME\r\n"
 	response += "250 SMTPUTF8" // last entry must use a space instead of a dash
 	return
 }

internal/smtpd/smtpd_test.go

@@ -215,10 +215,10 @@ func TestCmdMAIL(t *testing.T) {
 	cmdCode(t, conn, "MAIL FROM:<sender@example.com> SIZE= ", "501")
 	cmdCode(t, conn, "MAIL FROM:<sender@example.com> SIZE=foo", "501")
 
-	// MAIL with options should be ignored except for SIZE
-	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME", "250")           // ignored
-	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME,SIZE=1000", "250") // size detected
-	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME,SIZE=foo", "501")  // ignored
+	// MAIL with BODY parameter should be accepted (8BITMIME support)
+	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME", "250")
+	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME,SIZE=1000", "250")
+	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME,SIZE=foo", "501") // SIZE validation error
 
 	// TODO: MAIL with valid AUTH parameter should return 250 Ok
 
@@ -779,8 +779,8 @@ func parseExtensions(t *testing.T, greeting string) map[string]string {
 
 			// Add line as extension.
 			line = strings.TrimSpace(line[4:]) // Strip code prefix and trailing \r\n
-			if idx := strings.Index(line, " "); idx != -1 {
-				extensions[line[:idx]] = line[idx+1:]
+			if before, after, ok := strings.Cut(line, " "); ok {
+				extensions[before] = after
 			} else {
 				extensions[line] = ""
 			}
@@ -884,6 +884,105 @@ func TestMakeEHLOResponse(t *testing.T) {
 	if !rePlain.MatchString(extensions["AUTH"]) {
 		t.Errorf("AUTH mechanism PLAIN does not appear in the extension list when an AuthHandler is specified and TLS is in use")
 	}
+
+	// 8BITMIME should always be advertised
+	s.srv = &Server{}
+	s.tls = false
+	extensions = parseExtensions(t, s.makeEHLOResponse())
+	if _, ok := extensions["8BITMIME"]; !ok {
+		t.Errorf("8BITMIME does not appear in the extension list")
+	}
+
+	// SMTPUTF8 should always be advertised
+	if _, ok := extensions["SMTPUTF8"]; !ok {
+		t.Errorf("SMTPUTF8 does not appear in the extension list")
+	}
+
+	// ENHANCEDSTATUSCODES should always be advertised
+	if _, ok := extensions["ENHANCEDSTATUSCODES"]; !ok {
+		t.Errorf("ENHANCEDSTATUSCODES does not appear in the extension list")
+	}
+}
+
+// Test 8BITMIME BODY parameter parsing in MAIL FROM command
+func TestCmd8BITMIME(t *testing.T) {
+	srv := &Server{}
+	conn := newConn(t, srv)
+	cmdCode(t, conn, "EHLO host.example.com", "250")
+
+	// Create a session to check internal state
+	clientConn, serverConn := net.Pipe()
+	session := srv.newSession(serverConn)
+	go session.serve()
+
+	// Read and discard banner
+	_, _ = bufio.NewReader(clientConn).ReadString('\n')
+
+	// Send EHLO
+	_, _ = fmt.Fprintf(clientConn, "EHLO test.example.com\r\n")
+	reader := bufio.NewReader(clientConn)
+	for {
+		line, _ := reader.ReadString('\n')
+		if strings.HasPrefix(line, "250 ") {
+			break
+		}
+	}
+
+	// Test BODY=8BITMIME parameter
+	_, _ = fmt.Fprintf(clientConn, "MAIL FROM:<sender@example.com> BODY=8BITMIME\r\n")
+	resp, _ := reader.ReadString('\n')
+	if !strings.HasPrefix(resp, "250") {
+		t.Errorf("MAIL FROM with BODY=8BITMIME failed: %s", resp)
+	}
+
+	// Verify bodyEncoding was set (we can't directly access it, but we can test the behavior)
+	// Reset and test BODY=7BIT
+	_, _ = fmt.Fprintf(clientConn, "RSET\r\n")
+	_, _ = reader.ReadString('\n')
+
+	_, _ = fmt.Fprintf(clientConn, "MAIL FROM:<sender@example.com> BODY=7BIT\r\n")
+	resp, _ = reader.ReadString('\n')
+	if !strings.HasPrefix(resp, "250") {
+		t.Errorf("MAIL FROM with BODY=7BIT failed: %s", resp)
+	}
+
+	// Test BODY parameter with SIZE parameter
+	_, _ = fmt.Fprintf(clientConn, "RSET\r\n")
+	_, _ = reader.ReadString('\n')
+
+	_, _ = fmt.Fprintf(clientConn, "MAIL FROM:<sender@example.com> SIZE=1000 BODY=8BITMIME\r\n")
+	resp, _ = reader.ReadString('\n')
+	if !strings.HasPrefix(resp, "250") {
+		t.Errorf("MAIL FROM with SIZE and BODY parameters failed: %s", resp)
+	}
+
+	// Test case insensitivity
+	_, _ = fmt.Fprintf(clientConn, "RSET\r\n")
+	_, _ = reader.ReadString('\n')
+
+	_, _ = fmt.Fprintf(clientConn, "MAIL FROM:<sender@example.com> body=8bitmime\r\n")
+	resp, _ = reader.ReadString('\n')
+	if !strings.HasPrefix(resp, "250") {
+		t.Errorf("MAIL FROM with lowercase body parameter failed: %s", resp)
+	}
+
+	// Clean up
+	_, _ = fmt.Fprintf(clientConn, "QUIT\r\n")
+	_, _ = reader.ReadString('\n')
+	_ = clientConn.Close()
+
+	// Also test via the original connection
+	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME", "250")
+	cmdCode(t, conn, "RCPT TO:<recipient@example.com>", "250")
+
+	cmdCode(t, conn, "RSET", "250")
+	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=7BIT", "250")
+
+	cmdCode(t, conn, "RSET", "250")
+	cmdCode(t, conn, "MAIL FROM:<sender@example.com> BODY=8BITMIME SIZE=5000", "250")
+
+	cmdCode(t, conn, "QUIT", "221")
+	_ = conn.Close()
 }
 
 // func createTmpFile(content string) (file *os.File, err error) {

internal/storage/cron.go

@@ -16,6 +16,14 @@ import (
 
 // Database cron runs every minute
 func dbCron() {
+	if config.DisableAutoVACUUM {
+		if sqlDriver == "rqlite" {
+			logger.Log().Warn("[db] disable-auto-vacuum has no effect as rqlite handles vacuuming automatically")
+		} else {
+			logger.Log().Infof("[db] auto-VACUUM is disabled")
+		}
+	}
+
 	for {
 		time.Sleep(60 * time.Second)
 
@@ -35,7 +43,7 @@ func dbCron() {
 					deletedPercent = float64(deletedSize * 100 / total)
 				}
 				// only vacuum the DB if at least 1% of mail storage size has been deleted
-				if deletedPercent >= 1 {
+				if !config.DisableAutoVACUUM && deletedPercent >= 1 {
 					logger.Log().Debugf("[db] deleted messages is %f%% of total size, reclaim space", deletedPercent)
 					vacuumDb()
 				}
@@ -128,7 +136,10 @@ func pruneMessages() {
 		return
 	}
 
-	args := make([]interface{}, len(ids))
+	// roll back if it fails
+	defer func() { _ = tx.Rollback() }()
+
+	args := make([]any, len(ids))
 	for i, id := range ids {
 		args[i] = id
 	}
@@ -151,13 +162,8 @@ func pruneMessages() {
 		return
 	}
 
-	err = tx.Commit()
-
-	if err != nil {
+	if err = tx.Commit(); err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
-		if err := tx.Rollback(); err != nil {
-			logger.Log().Errorf("[db] %s", err.Error())
-		}
 	}
 
 	if err := pruneUnusedTags(); err != nil {

internal/storage/database.go

@@ -110,7 +110,7 @@ func InitDB() error {
 			logger.Log().Infof("[db] reconnecting in 5 seconds (attempt %d/5)", i)
 			time.Sleep(5 * time.Second)
 		} else {
-			continue
+			break
 		}
 	}
 

internal/storage/functions_test.go

@@ -49,7 +49,7 @@ func setup(tenantID string) {
 	}
 }
 
-func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
+func assertEqual(t *testing.T, a any, b any, message string) {
 	if a == b {
 		return
 	}

internal/storage/messages.go

@@ -3,6 +3,9 @@ package storage
 import (
 	"bytes"
 	"context"
+	"crypto/md5"  // #nosec
+	"crypto/sha1" // #nosec
+	"crypto/sha256"
 	"database/sql"
 	"encoding/base64"
 	"encoding/hex"
@@ -505,6 +508,14 @@ func AttachmentSummary(a *enmime.Part) Attachment {
 	o.ContentID = a.ContentID
 	o.Size = uint64(len(a.Content))
 
+	md5Hash := md5.Sum(a.Content)   // #nosec
+	sha1Hash := sha1.Sum(a.Content) // #nosec
+	sha256Hash := sha256.Sum256(a.Content)
+
+	o.Checksums.MD5 = hex.EncodeToString(md5Hash[:])
+	o.Checksums.SHA1 = hex.EncodeToString(sha1Hash[:])
+	o.Checksums.SHA256 = hex.EncodeToString(sha256Hash[:])
+
 	return o
 }
 
@@ -645,7 +656,7 @@ func DeleteMessages(ids []string) error {
 
 	start := time.Now()
 
-	args := make([]interface{}, len(ids))
+	args := make([]any, len(ids))
 	for i, id := range ids {
 		args[i] = id
 	}
@@ -685,7 +696,7 @@ func DeleteMessages(ids []string) error {
 		return err
 	}
 
-	args = make([]interface{}, len(toDelete))
+	args = make([]any, len(toDelete))
 	for i, id := range toDelete {
 		args[i] = id
 	}

internal/storage/messages_test.go

@@ -16,7 +16,7 @@ func TestTextEmailInserts(t *testing.T) {
 
 	start := time.Now()
 
-	for i := 0; i < testRuns; i++ {
+	for range testRuns {
 		if _, err := Store(&testTextEmail, nil); err != nil {
 			t.Log("error ", err)
 			t.Fail()
@@ -54,7 +54,7 @@ func TestMimeEmailInserts(t *testing.T) {
 
 		start := time.Now()
 
-		for i := 0; i < testRuns; i++ {
+		for range testRuns {
 			if _, err := Store(&testMimeEmail, nil); err != nil {
 				t.Log("error ", err)
 				t.Fail()
@@ -263,6 +263,11 @@ func TestRegularAttachmentHandling(t *testing.T) {
 	if msg.Attachments[0].ContentID != "" {
 		t.Errorf("Test case 3: Expected empty ContentID, got '%s'", msg.Attachments[0].ContentID)
 	}
+
+	// Checksum tests
+	assertEqual(t, msg.Attachments[0].Checksums.MD5, "b04930eb1ba0c62066adfa87e5d262c4", "Attachment MD5 checksum does not match")
+	assertEqual(t, msg.Attachments[0].Checksums.SHA1, "15605d6a2fca44e966209d1701f16ecf816df880", "Attachment SHA1 checksum does not match")
+	assertEqual(t, msg.Attachments[0].Checksums.SHA256, "92c4ccff376003381bd9054d3da7b32a3c5661905b55e3b0728c17aba6d223ec", "Attachment SHA256 checksum does not match")
 }
 
 func TestMixedAttachmentHandling(t *testing.T) {

internal/storage/reindex.go

@@ -27,7 +27,7 @@ func ReindexAll() {
 	err := sqlf.Select("ID").To(&i).
 		From(tenant("mailbox")).
 		OrderBy("Created DESC").
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {
 			ids = append(ids, i)
 		})
 

internal/storage/search.go

@@ -80,10 +80,7 @@ func Search(search, timezone string, start int, beforeTS int64, limit int) ([]Me
 	nrResults = len(allResults)
 
 	if nrResults > start {
-		end := nrResults
-		if nrResults >= start+limit {
-			end = start + limit
-		}
+		end := min(nrResults, start+limit)
 
 		results = allResults[start:end]
 	}
@@ -196,7 +193,7 @@ func DeleteSearch(search, timezone string) error {
 		defer func() { _ = tx.Rollback() }()
 
 		for _, ids := range chunks {
-			delIDs := make([]interface{}, len(ids))
+			delIDs := make([]any, len(ids))
 			for i, id := range ids {
 				delIDs[i] = id
 			}
@@ -303,12 +300,12 @@ func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 	// group strings with quotes as a single argument and remove quotes
 	args := tools.ArgsParser(searchString)
 
+	loc := time.Local
 	if timezone != "" {
-		loc, err := time.LoadLocation(timezone)
-		if err != nil {
+		if l, err := time.LoadLocation(timezone); err != nil {
 			logger.Log().Warnf("ignoring invalid timezone:\"%s\"", timezone)
 		} else {
-			time.Local = loc
+			loc = l
 		}
 	}
 
@@ -440,9 +437,9 @@ func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 			}
 		} else if lw == "is:tagged" {
 			if exclude {
-				q.Where(`m.ID NOT IN (SELECT DISTINCT mt.ID FROM ` + tenant("message_tags") + ` mt JOIN tags t ON mt.TagID = t.ID)`)
+				q.Where(`m.ID NOT IN (SELECT DISTINCT mt.ID FROM ` + tenant("message_tags") + ` mt JOIN ` + tenant("tags") + ` t ON mt.TagID = t.ID)`)
 			} else {
-				q.Where(`m.ID IN (SELECT DISTINCT mt.ID FROM ` + tenant("message_tags") + ` mt JOIN tags t ON mt.TagID = t.ID)`)
+				q.Where(`m.ID IN (SELECT DISTINCT mt.ID FROM ` + tenant("message_tags") + ` mt JOIN ` + tenant("tags") + ` t ON mt.TagID = t.ID)`)
 			}
 		} else if lw == "has:inline" || lw == "has:inlines" {
 			if exclude {
@@ -459,7 +456,7 @@ func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 		} else if strings.HasPrefix(lw, "after:") {
 			w = cleanString(w[6:])
 			if w != "" {
-				t, err := dateparse.ParseLocal(w)
+				t, err := dateparse.ParseIn(w, loc)
 				if err != nil {
 					logger.Log().Warnf("ignoring invalid after: date \"%s\"", w)
 				} else {
@@ -474,7 +471,7 @@ func searchQueryBuilder(searchString, timezone string) *sqlf.Stmt {
 		} else if strings.HasPrefix(lw, "before:") {
 			w = cleanString(w[7:])
 			if w != "" {
-				t, err := dateparse.ParseLocal(w)
+				t, err := dateparse.ParseIn(w, loc)
 				if err != nil {
 					logger.Log().Warnf("ignoring invalid before: date \"%s\"", w)
 				} else {

internal/storage/search_test.go

@@ -3,7 +3,7 @@ package storage
 import (
 	"bytes"
 	"fmt"
-	"math/rand"
+	"math/rand/v2"
 	"testing"
 
 	"github.com/axllent/mailpit/config"
@@ -22,13 +22,13 @@ func TestSearch(t *testing.T) {
 			t.Logf("Testing search (tenant %s)", tenantID)
 		}
 
-		for i := 0; i < testRuns; i++ {
+		for i := range testRuns {
 			msg := enmime.Builder().
 				From(fmt.Sprintf("From %d", i), fmt.Sprintf("from-%d@example.com", i)).
 				CC(fmt.Sprintf("CC %d", i), fmt.Sprintf("cc-%d@example.com", i)).
 				CC(fmt.Sprintf("CC2 %d", i), fmt.Sprintf("cc2-%d@example.com", i)).
 				Subject(fmt.Sprintf("Subject line %d end", i)).
-				Text([]byte(fmt.Sprintf("This is the email body %d <jdsauk;dwqmdqw;>.", i))).
+				Text(fmt.Appendf(nil, "This is the email body %d <jdsauk;dwqmdqw;>.", i)).
 				To(fmt.Sprintf("To %d", i), fmt.Sprintf("to-%d@example.com", i)).
 				To(fmt.Sprintf("To2 %d", i), fmt.Sprintf("to2-%d@example.com", i)).
 				ReplyTo(fmt.Sprintf("Reply To %d", i), fmt.Sprintf("reply-to-%d@example.com", i))
@@ -73,7 +73,7 @@ func TestSearch(t *testing.T) {
 				fmt.Sprintf("subject:\"Subject line %d end\"", i),
 				fmt.Sprintf("\"the email body %d jdsauk dwqmdqw\"", i),
 			}
-			searchIdx := rand.Intn(len(uniqueSearches))
+			searchIdx := rand.IntN(len(uniqueSearches))
 
 			search := uniqueSearches[searchIdx]
 
@@ -116,7 +116,7 @@ func TestSearchDelete100(t *testing.T) {
 			t.Logf("Testing search delete of 100 messages (tenant %s)", tenantID)
 		}
 
-		for i := 0; i < 100; i++ {
+		for range 100 {
 			if _, err := Store(&testTextEmail, nil); err != nil {
 				t.Log("error ", err)
 				t.Fail()
@@ -157,7 +157,7 @@ func TestSearchDelete1100(t *testing.T) {
 	defer Close()
 
 	t.Log("Testing search delete of 1100 messages")
-	for i := 0; i < 1100; i++ {
+	for range 1100 {
 		if _, err := Store(&testTextEmail, nil); err != nil {
 			t.Log("error ", err)
 			t.Fail()

internal/storage/settings.go

@@ -15,7 +15,7 @@ func SettingGet(k string) string {
 		Select("Value").To(&result).
 		Where("Key = ?", k).
 		Limit(1).
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {})
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {})
 	if err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
 		return ""
@@ -41,7 +41,7 @@ func getDeletedSize() uint64 {
 		Select("Value").To(&result).
 		Where("Key = ?", "DeletedSize").
 		Limit(1).
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {})
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {})
 	if err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
 		return 0
@@ -55,7 +55,7 @@ func totalMessagesSize() uint64 {
 	var result sql.NullFloat64
 	err := sqlf.From(tenant("mailbox")).
 		Select("SUM(Size)").To(&result).
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {})
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {})
 	if err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
 		return 0

internal/storage/structs.go

@@ -48,7 +48,7 @@ type Message struct {
 	Attachments []Attachment
 }
 
-// Attachment struct for inline and attachments
+// Attachment struct for inline images and attachments
 //
 // swagger:model Attachment
 type Attachment struct {
@@ -62,6 +62,15 @@ type Attachment struct {
 	ContentID string
 	// Size in bytes
 	Size uint64
+	// File checksums
+	Checksums struct {
+		// MD5 checksum hash of file
+		MD5 string
+		// SHA1 checksum hash of file
+		SHA1 string
+		// SHA256 checksum hash of file
+		SHA256 string
+	}
 }
 
 // MessageSummary struct for frontend messages

internal/storage/tags.go

@@ -147,7 +147,7 @@ func GetAllTags() []string {
 		Select(`DISTINCT Name`).
 		From(tenant("tags")).To(&name).
 		OrderBy("Name").
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {
 			tags = append(tags, name)
 		}); err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
@@ -169,7 +169,7 @@ func GetAllTagsCount() map[string]int64 {
 		LeftJoin(tenant("message_tags"), tenant("tags.ID")+" = "+tenant("message_tags.TagID")).
 		GroupBy(tenant("message_tags.TagID")).
 		OrderBy("Name").
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {
 			tags[name] = int64(total)
 		}); err != nil {
 		logger.Log().Errorf("[db] %s", err.Error())
@@ -352,7 +352,7 @@ func getMessageTags(id string) []string {
 		LeftJoin(tenant("message_tags"), tenant("Tags.ID")+"="+tenant("message_tags.TagID")).
 		Where(tenant("message_tags.ID")+` = ?`, id).
 		OrderBy("Name").
-		QueryAndClose(context.TODO(), db, func(row *sql.Rows) {
+		QueryAndClose(context.TODO(), db, func(_ *sql.Rows) {
 			tags = append(tags, name)
 		}); err != nil {
 		logger.Log().Errorf("[tags] %s", err.Error())

internal/storage/tags_test.go

@@ -3,6 +3,7 @@ package storage
 import (
 	"context"
 	"fmt"
+	"slices"
 	"strings"
 	"testing"
 
@@ -25,7 +26,7 @@ func TestTags(t *testing.T) {
 
 		ids := []string{}
 
-		for i := 0; i < 10; i++ {
+		for range 10 {
 			id, err := Store(&testMimeEmail, nil)
 			if err != nil {
 				t.Log("error ", err)
@@ -34,14 +35,14 @@ func TestTags(t *testing.T) {
 			ids = append(ids, id)
 		}
 
-		for i := 0; i < 10; i++ {
+		for i := range 10 {
 			if _, err := SetMessageTags(ids[i], []string{fmt.Sprintf("Tag-%d", i)}); err != nil {
 				t.Log("error ", err)
 				t.Fail()
 			}
 		}
 
-		for i := 0; i < 10; i++ {
+		for i := range 10 {
 			message, err := GetMessage(ids[i])
 			if err != nil {
 				t.Log("error ", err)
@@ -65,7 +66,7 @@ func TestTags(t *testing.T) {
 			t.Fail()
 		}
 		newTags := []string{}
-		for i := 0; i < 20; i++ {
+		for i := range 20 {
 			// pad number with 0 to ensure they are returned alphabetically
 			newTags = append(newTags, fmt.Sprintf("AnotherTag %02d", i))
 		}
@@ -159,13 +160,7 @@ func TestUsernameAutoTagging(t *testing.T) {
 		if err != nil {
 			t.Fatalf("GetMessage failed: %v", err)
 		}
-		found := false
-		for _, tag := range msg.Tags {
-			if tag == username {
-				found = true
-				break
-			}
-		}
+		found := slices.Contains(msg.Tags, username)
 		if !found {
 			t.Errorf("Expected username '%s' in tags, got %v", username, msg.Tags)
 		}

internal/tools/net.go

@@ -0,0 +1,28 @@
+package tools
+
+import (
+	"net"
+	"net/url"
+)
+
+// IsInternalIP checks if the given IP address is an internal IP address (e.g., loopback, private, link-local, or multicast).
+// IsLoopback — 127.0.0.0/8, ::1
+// IsPrivate — 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, fc00::/7
+// IsLinkLocalUnicast — 169.254.0.0/16, fe80::/10 (covers cloud metadata 169.254.169.254)
+// IsLinkLocalMulticast — 224.0.0.0/24, ff02::/16
+// IsUnspecified — 0.0.0.0, ::
+// IsMulticast — 224.0.0.0/4, ff00::/8
+func IsInternalIP(ip net.IP) bool {
+	return ip.IsLoopback() ||
+		ip.IsPrivate() ||
+		ip.IsLinkLocalUnicast() ||
+		ip.IsLinkLocalMulticast() ||
+		ip.IsUnspecified() ||
+		ip.IsMulticast()
+}
+
+// IsValidLinkURL checks if the provided string is a valid URL with http or https scheme and a non-empty hostname.
+func IsValidLinkURL(str string) bool {
+	u, err := url.Parse(str)
+	return err == nil && (u.Scheme == "http" || u.Scheme == "https") && u.Hostname() != ""
+}

package.json

@@ -12,7 +12,7 @@
     "lint-fix": "eslint --fix && prettier --write ."
   },
   "dependencies": {
-    "axios": "^1.11.0",
+    "axios": "^1.13.5",
     "bootstrap": "^5.2.0",
     "bootstrap-icons": "^1.9.1",
     "bootstrap5-tags": "^1.6.1",
@@ -30,7 +30,8 @@
     "vue-router": "^4.2.4"
   },
   "devDependencies": {
-    "@eslint/compat": "^1.3.1",
+    "@eslint/compat": "^2.0.2",
+    "@eslint/js": "^10.0.1",
     "@popperjs/core": "^2.11.5",
     "@types/bootstrap": "^5.2.7",
     "@types/tinycon": "^0.6.3",
@@ -38,9 +39,10 @@
     "esbuild": "^0.27.2",
     "esbuild-plugin-vue-next": "^0.1.4",
     "esbuild-sass-plugin": "^3.0.0",
-    "eslint": "^9.29.0",
+    "eslint": "^10.0.1",
     "eslint-config-prettier": "^10.1.5",
     "eslint-plugin-vue": "^10.2.0",
+    "globals": "^17.3.0",
     "prettier": "^3.5.3"
   },
   "prettier": {

sendmail/cmd/smtp.go

@@ -90,7 +90,13 @@ func sendMail(addr string, a smtp.Auth, from string, to []string, msg []byte) er
 	}
 	defer func() { _ = c.Close() }()
 
-	if err = c.Hello(addr); err != nil {
+	// Use the local hostname for EHLO/HELO as required by RFC 5321.
+	// Fall back to "localhost" if the hostname cannot be determined.
+	localHostname, err := os.Hostname()
+	if err != nil {
+		localHostname = "localhost"
+	}
+	if err = c.Hello(localHostname); err != nil {
 		return err
 	}
 

server/apiv1/message.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"net/http"
 	"net/mail"
+	"net/url"
 
 	"github.com/axllent/mailpit/internal/storage"
 	"github.com/gorilla/mux"
@@ -158,7 +159,7 @@ func DownloadAttachment(w http.ResponseWriter, r *http.Request) {
 	}
 
 	w.Header().Add("Content-Type", a.ContentType)
-	w.Header().Set("Content-Disposition", "filename=\""+fileName+"\"")
+	w.Header().Set("Content-Disposition", "inline; filename=\""+url.PathEscape(fileName)+"\"")
 	_, _ = w.Write(a.Content)
 }
 

server/cors.go

@@ -0,0 +1,135 @@
+package server
+
+import (
+	"net/http"
+	"net/url"
+	"sort"
+	"strings"
+
+	"github.com/axllent/mailpit/internal/logger"
+)
+
+var (
+	// AccessControlAllowOrigin CORS policy - set with flags/env
+	AccessControlAllowOrigin string
+
+	// CorsAllowOrigins are optional allowed origins by hostname, set via setCORSOrigins().
+	corsAllowOrigins = make(map[string]bool)
+)
+
+// equalASCIIFold reports whether s and t, interpreted as UTF-8 strings, are equal
+// under Unicode case folding, ignoring any difference in length.
+func asciiFoldString(s string) string {
+	b := make([]byte, len(s))
+	for i := range s {
+		b[i] = toLowerASCIIFold(s[i])
+	}
+	return string(b)
+}
+
+// toLowerASCIIFold returns the Unicode case-folded equivalent of the ASCII character c.
+// It is equivalent to the Unicode 13.0.0 function foldCase(c, CaseFoldingMapping).
+func toLowerASCIIFold(c byte) byte {
+	if 'A' <= c && c <= 'Z' {
+		return c + 'a' - 'A'
+	}
+	return c
+}
+
+// CorsOriginAccessControl checks if the request origin is allowed based on the configured CORS origins.
+func corsOriginAccessControl(r *http.Request) bool {
+	origin := r.Header["Origin"]
+
+	if len(origin) != 0 {
+		u, err := url.Parse(origin[0])
+		if err != nil {
+			logger.Log().Errorf("[cors] origin parse error: %v", err)
+			return false
+		}
+
+		_, allAllowed := corsAllowOrigins["*"]
+		// allow same origin, or if "*" is defined as an origin
+		if asciiFoldString(u.Host) == asciiFoldString(r.Host) || allAllowed {
+			return true
+		}
+
+		// match on full host:port so that example.com:8080 is not admitted
+		// by an allowlist entry for example.com (standard port 80/443).
+		originHostFold := asciiFoldString(u.Host)
+		if corsAllowOrigins[originHostFold] {
+			return true
+		}
+
+		logger.Log().Warnf("[cors] blocking request from unauthorized origin: %s", u.Host)
+
+		return false
+	}
+
+	return true
+}
+
+// SetCORSOrigins sets the allowed CORS origins from a comma-separated string.
+// Origins are matched on the full host:port, so example.com and example.com:8080
+// are treated as distinct origins.
+func setCORSOrigins() {
+	corsAllowOrigins = make(map[string]bool)
+
+	hosts := extractOrigins(AccessControlAllowOrigin)
+	for _, host := range hosts {
+		corsAllowOrigins[asciiFoldString(host)] = true
+	}
+
+	if _, wildCard := corsAllowOrigins["*"]; wildCard {
+		// reset to just wildcard
+		corsAllowOrigins = make(map[string]bool)
+		corsAllowOrigins["*"] = true
+		logger.Log().Info("[cors] all origins are allowed due to wildcard \"*\"")
+	} else {
+		keys := make([]string, 0)
+		for k := range corsAllowOrigins {
+			keys = append(keys, k)
+		}
+		sort.Strings(keys)
+		logger.Log().Infof("[cors] allowed API origins: %v", strings.Join(keys, ", "))
+	}
+}
+
+// extractOrigins extracts and returns a sorted list of origins from a comma-separated string.
+func extractOrigins(str string) []string {
+	origins := make([]string, 0)
+	s := strings.TrimSpace(str)
+	if s == "" {
+		return origins
+	}
+
+	hosts := strings.FieldsFunc(s, func(r rune) bool {
+		return r == ',' || r == ' '
+	})
+
+	for _, host := range hosts {
+		h := strings.TrimSpace(host)
+		if h != "" {
+			if h == "*" {
+				return []string{"*"}
+			}
+
+			if !strings.HasPrefix(h, "http://") && !strings.HasPrefix(h, "https://") {
+				h = "http://" + h
+			}
+
+			u, err := url.Parse(h)
+			if err != nil || u.Hostname() == "" || strings.Contains(h, "*") {
+				logger.Log().Warnf("[cors] invalid CORS origin \"%s\", ignoring", h)
+				continue
+			}
+
+			// Store host:port so port differences are respected.
+			// u.Host equals u.Hostname() when no port is present.
+			origins = append(origins, u.Host)
+		}
+	}
+
+	sort.Strings(origins)
+
+	return origins
+}

server/cors_test.go

@@ -0,0 +1,122 @@
+package server
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestExtractOrigins(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected []string
+	}{
+		{
+			name:     "empty string",
+			input:    "",
+			expected: []string{},
+		},
+		{
+			name:     "single hostname",
+			input:    "example.com",
+			expected: []string{"example.com"},
+		},
+		{
+			name:     "multiple hostnames comma separated",
+			input:    "example.com,foo.com",
+			expected: []string{"example.com", "foo.com"},
+		},
+		{
+			name:     "multiple hostnames space separated",
+			input:    "example.com foo.com",
+			expected: []string{"example.com", "foo.com"},
+		},
+		{
+			name:     "wildcard",
+			input:    "*",
+			expected: []string{"*"},
+		},
+		{
+			name:     "mixed protocols",
+			input:    "http://example.com,https://foo.com:8080",
+			expected: []string{"example.com", "foo.com:8080"},
+		},
+		{
+
+			name:     "embedded wildcard",
+			input:    "http://example.com,*,https://test",
+			expected: []string{"*"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := extractOrigins(tt.input)
+
+			if len(got) != len(tt.expected) {
+				t.Errorf("expected %d origins, got %d", len(tt.expected), len(got))
+				return
+			}
+			for i := range got {
+				if got[i] != tt.expected[i] {
+					t.Errorf("expected origin %q, got %q", tt.expected[i], got[i])
+				}
+			}
+		})
+	}
+}
+
+func TestCorsOriginAccessControl(t *testing.T) {
+	// Setup allowed origins
+	AccessControlAllowOrigin = "example.com,foo.com,bar.com"
+	setCORSOrigins()
+
+	tests := []struct {
+		name   string
+		origin string
+		host   string
+		allow  bool
+	}{
+		{"no origin header", "", "example.com", true},
+		// example.com:1234 must NOT be admitted by an allowlist entry for example.com (different port)
+		{"allowed origin", "http://example.com:1234", "mailpit.local", false},
+		{"allowed origin", "http://example.com:1234", "example.com", false},
+		{"allowed origin", "http://example.com:1234", "example.com:1234", true},
+		{"not allowed origin", "http://notallowed.com", "mailpit.local", false},
+		{"allowed by hostname", "http://foo.com", "mailpit.local", true},
+		{"ascii fold: allowed origin uppercase", "HTTP://EXAMPLE.COM", "mailpit.local", true},
+		{"ascii fold: allowed by hostname uppercase", "HTTP://FOO.COM", "mailpit.local", true},
+		{"ascii fold: host uppercase", "http://example.com", "MAILPIT.LOCAL", true},
+		{"ascii fold: not allowed origin uppercase", "HTTP://NOTALLOWED.COM", "mailpit.local", false},
+		{"ascii fold: mixed case", "HtTp://ExAmPlE.CoM", "mailpit.local", true},
+		{"non-ascii: allowed origin (unicode hostname)", "http://exámple.com", "mailpit.local", false},
+		{"non-ascii: allowed by hostname (unicode)", "http://föö.com", "mailpit.local", false},
+		{"non-ascii: host uppercase (unicode)", "http://exámple.com", "MAILPIT.LOCAL", false},
+		{"non-ascii: mixed case (unicode)", "HtTp://ExÁmPlE.CoM", "mailpit.local", false},
+	}
+
+	// Add wildcard test
+	AccessControlAllowOrigin = "*"
+	setCORSOrigins()
+	reqWildcard := &http.Request{Header: http.Header{"Origin": {"http://any.com"}}, Host: "mailpit.local"}
+	if !corsOriginAccessControl(reqWildcard) {
+		t.Error("Wildcard origin should be allowed")
+	}
+
+	// Reset to specific hosts
+	AccessControlAllowOrigin = "example.com,foo.com,bar.com"
+	setCORSOrigins()
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			req := &http.Request{Header: http.Header{}, Host: tt.host}
+			if tt.origin != "" {
+				req.Header.Set("Origin", tt.origin)
+			}
+			allowed := corsOriginAccessControl(req)
+			if allowed != tt.allow {
+				t.Errorf("expected allowed=%v, got %v for origin=%q host=%q", tt.allow, allowed, tt.origin, tt.host)
+			}
+		})
+	}
+}

server/handlers/proxy.go

@@ -2,10 +2,13 @@
 package handlers
 
 import (
+	"context"
 	"crypto/tls"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"io"
+	"net"
 	"net/http"
 	"net/url"
 	"regexp"
@@ -20,6 +23,12 @@ import (
 	"github.com/axllent/mailpit/internal/tools"
 )
 
+const (
+	// maxProxyBodySize is the maximum number of bytes read from a proxied
+	// response body (fonts, images, CSS). Prevents OOM on oversized responses.
+	maxProxyBodySize = 50 * 1024 * 1024 // 50 MB
+)
+
 var (
 	linkRe = regexp.MustCompile(`(?i)^https?:\/\/`)
 
@@ -96,21 +105,37 @@ func ProxyHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if !linkRe.MatchString(uri) {
-		logger.Log().Warnf("[proxy] invalid request %s", uri)
-		httpError(w, "Error: invalid request")
+	if !linkRe.MatchString(uri) || !tools.IsValidLinkURL(uri) {
+		logger.Log().Warnf("[proxy] invalid URL %s", uri)
+		httpError(w, "Error: invalid URL")
 		return
 	}
 
-	tr := &http.Transport{}
+	dialer := &net.Dialer{
+		Timeout:   10 * time.Second,
+		KeepAlive: 30 * time.Second,
+	}
+
+	tr := &http.Transport{
+		DialContext: safeDialContext(dialer),
+	}
 
 	if config.AllowUntrustedTLS {
 		tr.TLSClientConfig = &tls.Config{InsecureSkipVerify: true} // #nosec
 	}
 
 	client := &http.Client{
-		Transport: tr,
 		Timeout:   10 * time.Second,
+		Transport: tr,
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			if len(via) >= 3 {
+				return errors.New("too many redirects")
+			}
+			if !tools.IsValidLinkURL(req.URL.String()) {
+				return fmt.Errorf("blocked redirect to invalid URL: %s", req.URL)
+			}
+			return nil
+		},
 	}
 
 	req, err := http.NewRequest("GET", uri, nil)
@@ -145,12 +170,18 @@ func ProxyHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	body, err := io.ReadAll(resp.Body)
+	limitedBody := io.LimitReader(resp.Body, maxProxyBodySize+1)
+	body, err := io.ReadAll(limitedBody)
 	if err != nil {
 		logger.Log().Warnf("[proxy] %s", err.Error())
 		httpError(w, "Error: invalid request")
 		return
 	}
+	if int64(len(body)) > maxProxyBodySize {
+		logger.Log().Warnf("[proxy] response body for %s exceeds %d bytes, blocking", uri, maxProxyBodySize)
+		httpError(w, "Error: response too large")
+		return
+	}
 
 	// relay common headers
 	w.Header().Set("content-type", ct)
@@ -357,3 +388,28 @@ func supportedProxyContentType(ct string) bool {
 
 	return false
 }
+
+// SafeDialContext is a custom dialer that checks if the resolved IP addresses are internal before allowing the connection.
+func safeDialContext(dialer *net.Dialer) func(ctx context.Context, network, address string) (net.Conn, error) {
+	return func(ctx context.Context, network, address string) (net.Conn, error) {
+		host, port, err := net.SplitHostPort(address)
+		if err != nil {
+			return nil, err
+		}
+
+		ips, err := net.DefaultResolver.LookupIPAddr(ctx, host)
+		if err != nil {
+			return nil, err
+		}
+
+		if !config.AllowInternalHTTPRequests {
+			for _, ip := range ips {
+				if tools.IsInternalIP(ip.IP) {
+					return nil, fmt.Errorf("blocked request to %s (%s): private/reserved address", host, ip)
+				}
+			}
+		}
+
+		return dialer.DialContext(ctx, network, net.JoinHostPort(ips[0].IP.String(), port))
+	}
+}

server/server.go

@@ -4,6 +4,7 @@ package server
 import (
 	"bytes"
 	"compress/gzip"
+	"context"
 	"fmt"
 	"io"
 	"net"
@@ -32,21 +33,30 @@ import (
 )
 
 var (
-	// AccessControlAllowOrigin CORS policy
-	AccessControlAllowOrigin string
-
 	// htmlPreviewRouteRe is a regexp to match the HTML preview route
 	htmlPreviewRouteRe *regexp.Regexp
 )
 
+// skipUIAuthKey is a private context key used to signal that UI basic-auth
+// should be bypassed for a specific request. This avoids mutating the global
+// auth.UICredentials pointer (which is a data race under concurrent load).
+type contextKey int
+
+const skipUIAuthKey contextKey = iota
+
 // Listen will start the httpd
 func Listen() {
+	setCORSOrigins()
+
 	isReady := &atomic.Value{}
 	isReady.Store(false)
 	stats.Track()
 
 	websockets.MessageHub = websockets.NewHub()
 
+	// set allowed websocket origins from configuration
+	// websockets.SetAllowedOrigins(AccessControlAllowWSOrigins)
+
 	go websockets.MessageHub.Run()
 
 	go pop3.Run()
@@ -196,7 +206,7 @@ func apiRoutes() *mux.Router {
 	}
 
 	// web UI websocket
-	r.HandleFunc(config.Webroot+"api/events", apiWebsocket).Methods("GET")
+	r.HandleFunc(config.Webroot+"api/events", middleWareFunc(apiWebsocket)).Methods("GET")
 
 	// return blank 200 response for OPTIONS requests for CORS
 	r.PathPrefix(config.Webroot + "api/v1/").Handler(middleWareFunc(apiv1.GetOptions)).Methods("OPTIONS")
@@ -208,25 +218,23 @@ func apiRoutes() *mux.Router {
 func basicAuthResponse(w http.ResponseWriter) {
 	w.Header().Set("WWW-Authenticate", `Basic realm="Login"`)
 	w.WriteHeader(http.StatusUnauthorized)
-	_, _ = w.Write([]byte("Unauthorised.\n"))
+	_, _ = w.Write([]byte("Unauthorized.\n"))
 }
 
-// sendAPIAuthMiddleware handles authentication specifically for the send API endpoint
-// It can use dedicated send API authentication or accept any credentials based on configuration
+// sendAPIAuthMiddleware handles authentication specifically for the send API endpoint.
+// It can use dedicated send API authentication or accept any credentials based on configuration.
+// It communicates skip-UI-auth intent via request context rather than mutating the global
+// auth.UICredentials pointer, which would be a data race under concurrent load.
 func sendAPIAuthMiddleware(fn http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		// If send API auth accept any is enabled, bypass all authentication
+		// If send API auth accept any is enabled, bypass all authentication.
 		if config.SendAPIAuthAcceptAny {
-			// Temporarily disable UI auth for this request
-			originalCredentials := auth.UICredentials
-			auth.UICredentials = nil
-			defer func() { auth.UICredentials = originalCredentials }()
-			// Call the standard middleware
-			middleWareFunc(fn)(w, r)
+			ctx := context.WithValue(r.Context(), skipUIAuthKey, true)
+			middleWareFunc(fn)(w, r.WithContext(ctx))
 			return
 		}
 
-		// If Send API credentials are configured, only accept those credentials
+		// If Send API credentials are configured, only accept those credentials.
 		if auth.SendAPICredentials != nil {
 			user, pass, ok := r.BasicAuth()
 
@@ -240,15 +248,13 @@ func sendAPIAuthMiddleware(fn http.HandlerFunc) http.HandlerFunc {
 				return
 			}
 
-			// Valid Send API credentials - bypass UI auth and call function directly
-			originalCredentials := auth.UICredentials
-			auth.UICredentials = nil
-			defer func() { auth.UICredentials = originalCredentials }()
-			middleWareFunc(fn)(w, r)
+			// Valid Send API credentials — bypass UI auth via context flag.
+			ctx := context.WithValue(r.Context(), skipUIAuthKey, true)
+			middleWareFunc(fn)(w, r.WithContext(ctx))
 			return
 		}
 
-		// No Send API credentials configured - fall back to UI auth
+		// No Send API credentials configured — fall back to UI auth.
 		middleWareFunc(fn)(w, r)
 	}
 }
@@ -287,17 +293,23 @@ func middleWareFunc(fn http.HandlerFunc) http.HandlerFunc {
 			htmlPreviewRouteRe = regexp.MustCompile(`^` + regexp.QuoteMeta(config.Webroot) + `view/[a-zA-Z0-9]+\.html$`)
 		}
 
-		if AccessControlAllowOrigin != "" &&
-			(strings.HasPrefix(r.RequestURI, config.Webroot+"api/") || htmlPreviewRouteRe.MatchString(r.RequestURI)) {
-			w.Header().Set("Access-Control-Allow-Origin", AccessControlAllowOrigin)
+		if strings.HasPrefix(r.RequestURI, config.Webroot+"api/") || htmlPreviewRouteRe.MatchString(r.RequestURI) {
+			if allowed := corsOriginAccessControl(r); !allowed {
+				http.Error(w, "Blocked due to CORS violation", http.StatusForbidden)
+				return
+			}
+			w.Header().Set("Access-Control-Allow-Origin", r.Header.Get("Origin"))
 			w.Header().Set("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS")
 			w.Header().Set("Access-Control-Allow-Headers", "*")
 		}
 
 		// Check basic authentication headers if configured.
 		// OPTIONS requests are skipped if CORS is enabled, since browsers omit credentials for preflight checks.
+		// skipUIAuthKey in the request context allows sendAPIAuthMiddleware to bypass UI auth
+		// for a specific request without touching the global auth.UICredentials pointer.
+		skipUIAuth, _ := r.Context().Value(skipUIAuthKey).(bool)
 		isCORSOptionsRequest := AccessControlAllowOrigin != "" && r.Method == http.MethodOptions
-		if !isCORSOptionsRequest && auth.UICredentials != nil {
+		if !skipUIAuth && !isCORSOptionsRequest && auth.UICredentials != nil {
 			user, pass, ok := r.BasicAuth()
 
 			if !ok {
@@ -311,7 +323,11 @@ func middleWareFunc(fn http.HandlerFunc) http.HandlerFunc {
 			}
 		}
 
-		if config.DisableHTTPCompression || !strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
+		// WebSocket upgrade requests must not be wrapped in a gzip writer:
+		// gzipResponseWriter does not implement http.Hijacker, which the
+		// WebSocket library requires to take over the raw TCP connection.
+		isWebSocketUpgrade := strings.EqualFold(r.Header.Get("Upgrade"), "websocket")
+		if isWebSocketUpgrade || config.DisableHTTPCompression || !strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
 			fn(w, r)
 			return
 		}
@@ -329,7 +345,8 @@ func addSlashToWebroot(w http.ResponseWriter, r *http.Request) {
 	http.Redirect(w, r, config.Webroot, http.StatusFound)
 }
 
-// Websocket to broadcast changes
+// Websocket to broadcast changes.
+// Authentication and CORS are handled by middleWareFunc before this is reached.
 func apiWebsocket(w http.ResponseWriter, r *http.Request) {
 	websockets.ServeWs(websockets.MessageHub, w, r)
 	storage.BroadcastMailboxStats()

server/server_test.go

@@ -28,7 +28,7 @@ var (
 	}
 
 	// Shared test message structure for consistency
-	testSendMessage = map[string]interface{}{
+	testSendMessage = map[string]any{
 		"From": map[string]string{
 			"Email": "test@example.com",
 		},
@@ -130,14 +130,14 @@ func TestAPIv1ToggleReadStatus(t *testing.T) {
 
 	// read first 10 IDs
 	t.Log("Get first 10 IDs")
-	putIDS := []string{}
+	putIDs := []string{}
 	for idx, msg := range m.Messages {
 		if idx == 10 {
 			break
 		}
 
 		// store for later
-		putIDS = append(putIDS, msg.ID)
+		putIDs = append(putIDs, msg.ID)
 	}
 	assertStatsEqual(t, ts.URL+"/api/v1/messages", 100, 100)
 
@@ -145,7 +145,7 @@ func TestAPIv1ToggleReadStatus(t *testing.T) {
 	t.Log("Mark first 10 as read")
 	putData := putDataStruct
 	putData.Read = true
-	putData.IDs = putIDS
+	putData.IDs = putIDs
 	j, err := json.Marshal(putData)
 	if err != nil {
 		t.Error(err.Error())
@@ -545,11 +545,11 @@ func assertSearchEqual(t *testing.T, uri, query string, count int) {
 }
 
 func insertEmailData(t *testing.T) {
-	for i := 0; i < 100; i++ {
+	for i := range 100 {
 		msg := enmime.Builder().
 			From(fmt.Sprintf("From %d", i), fmt.Sprintf("from-%d@example.com", i)).
 			Subject(fmt.Sprintf("Subject line %d end", i)).
-			Text([]byte(fmt.Sprintf("This is the email body %d <jdsauk;dwqmdqw;>.", i))).
+			Text(fmt.Appendf(nil, "This is the email body %d <jdsauk;dwqmdqw;>.", i)).
 			To(fmt.Sprintf("To %d", i), fmt.Sprintf("to-%d@example.com", i))
 
 		env, err := msg.Build()
@@ -754,7 +754,7 @@ func clientGetWithAuth(url, username, password string) ([]byte, error) {
 	return data, err
 }
 
-func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
+func assertEqual(t *testing.T, a any, b any, message string) {
 	if a == b {
 		return
 	}

server/ui-src/components/AppAbout.vue

@@ -25,6 +25,13 @@ export default {
 		};
 	},
 
+	computed: {
+		isEdgeBuild() {
+			const re = /^(v\d+.\d+.\d+-)/i;
+			return re.test(mailbox.appInfo.Version);
+		},
+	},
+
 	methods: {
 		loadInfo() {
 			this.get(this.resolve("/api/v1/info"), false, (response) => {
@@ -98,6 +105,7 @@ export default {
 						<h5 id="AppInfoModalLabel" class="modal-title">
 							Mailpit
 							<code>({{ mailbox.appInfo.Version }})</code>
+							<span v-if="isEdgeBuild" class="badge bg-info text-dark ms-2">edge build</span>
 						</h5>
 						<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
 					</div>

server/ui-src/components/AppNotifications.vue

@@ -77,7 +77,8 @@ export default {
 					if (!this.pauseNotifications) {
 						this.pauseNotifications = true;
 						const from = response.Data.From !== null ? response.Data.From.Address : "[unknown]";
-						this.browserNotify("New mail from: " + from, response.Data.Subject);
+						const subject = String(response.Data.Subject ?? "").substring(0, 100);
+						this.browserNotify("New mail from: " + from, subject);
 						this.setMessageToast(response.Data);
 						// delay notifications by 2s
 						window.setTimeout(() => {

server/ui-src/components/AppSettings.vue

@@ -14,9 +14,7 @@ export default {
 			timezones,
 			chaosConfig: false,
 			chaosUpdated: false,
-			defaultReleaseAddressesOptions: localStorage.getItem("defaultReleaseAddresses")
-				? JSON.parse(localStorage.getItem("defaultReleaseAddresses"))
-				: [], // set with default release addresses
+			defaultReleaseAddressesOptions: mailbox.defaultReleaseAddresses.slice(), // set with default release addresses
 		};
 	},
 

server/ui-src/components/NavMailbox.vue

@@ -89,7 +89,7 @@ export default {
 				<button
 					v-if="mailbox.skipConfirmations"
 					class="list-group-item list-group-item-action"
-					:disabled="!mailbox.messages_unread"
+					:disabled="!mailbox.unread"
 					@click="markAllRead"
 				>
 					<i class="bi bi-eye-fill me-1"></i>
@@ -100,7 +100,7 @@ export default {
 					class="list-group-item list-group-item-action"
 					data-bs-toggle="modal"
 					data-bs-target="#MarkAllReadModal"
-					:disabled="!mailbox.messages_unread"
+					:disabled="!mailbox.unread"
 				>
 					<i class="bi bi-eye-fill me-1"></i>
 					Mark all read

server/ui-src/components/NavSelected.vue

@@ -51,8 +51,7 @@ export default {
 
 		// universal handler to delete current or selected messages
 		deleteMessages() {
-			let ids = [];
-			ids = JSON.parse(JSON.stringify(mailbox.selected));
+			const ids = JSON.parse(JSON.stringify(mailbox.selected));
 			if (!ids.length) {
 				return false;
 			}

server/ui-src/components/message/MessageAttachments.vue

@@ -1,5 +1,6 @@
 <script>
 import commonMixins from "../../mixins/CommonMixins";
+import { mailbox } from "../../stores/mailbox";
 import ICAL from "ical.js";
 import dayjs from "dayjs";
 
@@ -19,6 +20,7 @@ export default {
 
 	data() {
 		return {
+			mailbox,
 			ical: false,
 		};
 	},
@@ -74,46 +76,125 @@ export default {
 </script>
 
 <template>
-	<div class="mt-4 border-top pt-4">
-		<a
+	<hr />
+
+	<button
+		class="btn btn-sm btn-outline-secondary mb-3"
+		@click="mailbox.showAttachmentDetails = !mailbox.showAttachmentDetails"
+	>
+		<i class="bi me-1" :class="mailbox.showAttachmentDetails ? 'bi-eye-slash' : 'bi-eye'"></i>
+		{{ mailbox.showAttachmentDetails ? "Hide" : "Show" }} attachment details
+	</button>
+
+	<div class="row gx-1 w-100">
+		<div
 			v-for="part in attachments"
 			:key="part.PartID"
-			:href="resolve('/api/v1/message/' + message.ID + '/part/' + part.PartID)"
-			class="card attachment float-start me-3 mb-3"
-			target="_blank"
-			style="width: 180px"
-			@click="openAttachment(part, $event)"
+			:class="mailbox.showAttachmentDetails ? 'col-12' : 'col-auto'"
 		>
-			<img
-				v-if="isImage(part)"
-				:src="resolve('/api/v1/message/' + message.ID + '/part/' + part.PartID + '/thumb')"
-				class="card-img-top"
-				alt=""
-			/>
-			<img
-				v-else
-				src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALQAAAB4AQMAAABhKUq+AAAAA1BMVEX///+nxBvIAAAAGUlEQVQYGe3BgQAAAADDoPtTT+EA1QAAgFsLQAAB12s2WgAAAABJRU5ErkJggg=="
-				class="card-img-top"
-				alt=""
-			/>
-			<div v-if="!isImage(part)" class="icon">
-				<i class="bi" :class="attachmentIcon(part)"></i>
+			<div class="row gx-1 mb-3">
+				<div class="col-auto">
+					<a
+						:href="resolve('/api/v1/message/' + message.ID + '/part/' + part.PartID)"
+						class="card attachment float-start me-3 mb-3"
+						target="_blank"
+						style="width: 180px"
+						@click="openAttachment(part, $event)"
+					>
+						<img
+							v-if="isImage(part)"
+							:src="resolve('/api/v1/message/' + message.ID + '/part/' + part.PartID + '/thumb')"
+							class="card-img-top"
+							alt=""
+						/>
+						<img
+							v-else
+							src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALQAAAB4AQMAAABhKUq+AAAAA1BMVEX///+nxBvIAAAAGUlEQVQYGe3BgQAAAADDoPtTT+EA1QAAgFsLQAAB12s2WgAAAABJRU5ErkJggg=="
+							class="card-img-top"
+							alt=""
+						/>
+						<div v-if="!isImage(part)" class="icon">
+							<i class="bi" :class="attachmentIcon(part)"></i>
+						</div>
+						<div class="card-body border-0">
+							<p class="mb-1">
+								<i class="bi me-1" :class="attachmentIcon(part)"></i>
+								<small>{{ getFileSize(part.Size) }}</small>
+							</p>
+							<p class="card-text mb-0 small">
+								{{ part.FileName != "" ? part.FileName : "[ unknown ]" + part.ContentType }}
+							</p>
+						</div>
+						<div class="card-footer small border-0 text-center text-truncate">
+							{{ part.FileName != "" ? part.FileName : "[ unknown ]" + part.ContentType }}
+						</div>
+					</a>
+				</div>
+				<div v-if="mailbox.showAttachmentDetails" class="col">
+					<h5 class="mb-1">
+						<a
+							:href="resolve('/api/v1/message/' + message.ID + '/part/' + part.PartID)"
+							class="me-2"
+							@click="openAttachment(part, $event)"
+						>
+							{{ part.FileName != "" ? part.FileName : "[ unknown ]" + part.ContentType }}
+						</a>
+						<small class="text-muted fw-light">
+							<small>({{ getFileSize(part.Size) }})</small>
+						</small>
+					</h5>
+					<p class="mb-1 small"><strong>Disposition</strong>: {{ part.ContentDisposition }}</p>
+					<p class="mb-2 small">
+						<strong>Content type</strong>: <code>{{ part.ContentType }}</code>
+					</p>
+					<p class="m-0 small">
+						<strong>MD5</strong>:
+						<button
+							v-if="copyToClipboardSupported"
+							class="btn btn-sm btn-link p-0"
+							title="Click to copy to clipboard"
+							@click="copyToClipboard(part.Checksums.MD5, $event)"
+						>
+							{{ part.Checksums.MD5 }}
+							<i v-if="!copiedText[part.Checksums.MD5]" class="bi bi-clipboard ms-1"></i>
+							<i v-else class="bi bi-check2-square ms-1 text-success"></i>
+						</button>
+						<code v-else>{{ part.Checksums.MD5 }}</code>
+					</p>
+					<p class="m-0 small">
+						<strong>SHA1</strong>:
+						<button
+							v-if="copyToClipboardSupported"
+							class="btn btn-link p-0"
+							title="Click to copy to clipboard"
+							@click="copyToClipboard(part.Checksums.SHA1, $event)"
+						>
+							{{ part.Checksums.SHA1 }}
+							<i v-if="!copiedText[part.Checksums.SHA1]" class="bi bi-clipboard ms-1"></i>
+							<i v-else class="bi bi-check2-square ms-1 text-success"></i>
+						</button>
+						<code v-else>{{ part.Checksums.SHA1 }}</code>
+					</p>
+					<p class="m-0 small">
+						<strong>SHA256</strong>:
+						<button
+							v-if="copyToClipboardSupported"
+							class="btn btn-sm btn-link p-0"
+							title="Click to copy to clipboard"
+							@click="copyToClipboard(part.Checksums.SHA256, $event)"
+						>
+							{{ part.Checksums.SHA256 }}
+							<i v-if="!copiedText[part.Checksums.SHA256]" class="bi bi-clipboard ms-1"></i>
+							<i v-else class="bi bi-check2-square ms-1 text-success"></i>
+						</button>
+						<code v-else>{{ part.Checksums.SHA256 }}</code>
+					</p>
+				</div>
 			</div>
-			<div class="card-body border-0">
-				<p class="mb-1">
-					<i class="bi me-1" :class="attachmentIcon(part)"></i>
-					<small>{{ getFileSize(part.Size) }}</small>
-				</p>
-				<p class="card-text mb-0 small">
-					{{ part.FileName != "" ? part.FileName : "[ unknown ]" + part.ContentType }}
-				</p>
-			</div>
-			<div class="card-footer small border-0 text-center text-truncate">
-				{{ part.FileName != "" ? part.FileName : "[ unknown ]" + part.ContentType }}
-			</div>
-		</a>
+		</div>
 	</div>
 
+	<!-- ICS Modal -->
 	<div id="ICSView" class="modal fade" tabindex="-1" aria-hidden="true">
 		<div class="modal-dialog modal-dialog-centered modal-dialog-scrollable modal-lg">
 			<div class="modal-content">

server/ui-src/components/message/MessageHeaders.vue

@@ -14,27 +14,89 @@ export default {
 	data() {
 		return {
 			headers: false,
+			filter: "",
 		};
 	},
 
+	computed: {
+		filteredHeaders() {
+			if (this.filter === "") {
+				return this.headers;
+			}
+			const searchWords = this.filter
+				.toLowerCase()
+				.split(/\s+/)
+				.filter((x) => x.length > 0);
+
+			const filtered = {};
+			for (const k in this.headers) {
+				const values = this.headers[k];
+				const kLower = k.toLowerCase();
+				if (searchWords.every((w) => kLower.includes(w))) {
+					filtered[k] = values;
+				} else {
+					const matchingValues = values.filter((v) => {
+						const vLower = v.toLowerCase();
+						return searchWords.every((w) => vLower.includes(w));
+					});
+					if (matchingValues.length > 0) {
+						filtered[k] = matchingValues;
+					}
+				}
+			}
+
+			return filtered;
+		},
+	},
+
 	mounted() {
 		const uri = this.resolve("/api/v1/message/" + this.message.ID + "/headers");
 		this.get(uri, false, (response) => {
 			this.headers = response.data;
 		});
 	},
+
+	methods: {
+		highlight(text) {
+			const escaped = text.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
+			if (!this.filter || this.filter.trim() === "") {
+				return escaped;
+			}
+			const words = this.filter
+				.trim()
+				.split(/\s+/)
+				.filter((w) => w.length > 0)
+				.map((w) => w.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"));
+			const regex = new RegExp(words.join("|"), "gi");
+			return escaped.replace(regex, "<mark>$&</mark>");
+		},
+	},
 };
 </script>
 
-<template>
-	<div v-if="headers" class="small">
-		<div v-for="(values, k) in headers" :key="'headers_' + k" class="row mb-2 pb-2 border-bottom w-100">
+<template v-if="headers">
+	<div class="row w-100 mb-3">
+		<div class="col col-md-10 col-lg-7">
+			<input
+				v-model.trim="filter"
+				type="search"
+				class="form-control mb-3"
+				placeholder="Filter headers..."
+				aria-label="Filter headers"
+			/>
+		</div>
+	</div>
+	<div v-if="Object.keys(filteredHeaders).length > 0" class="small">
+		<div v-for="(values, k) in filteredHeaders" :key="'headers_' + k" class="row mb-2 pb-2 border-bottom w-100">
 			<div class="col-md-4 col-lg-3 col-xl-2 mb-2">
-				<b>{{ k }}</b>
+				<!-- eslint-disable-next-line vue/no-v-html -->
+				<b v-html="highlight(k)"></b>
 			</div>
 			<div class="col-md-8 col-lg-9 col-xl-10 text-body-secondary">
-				<div v-for="(x, i) in values" :key="'line_' + i" class="mb-2 text-break">{{ x }}</div>
+				<!-- eslint-disable-next-line vue/no-v-html -->
+				<div v-for="(x, i) in values" :key="'line_' + i" class="mb-2 text-break" v-html="highlight(x)"></div>
 			</div>
 		</div>
 	</div>
+	<div v-else class="text-body-secondary">No matching headers found.</div>
 </template>

server/ui-src/components/message/MessageItem.vue

@@ -107,7 +107,7 @@ export default {
 					"vspace",
 					"xml:lang",
 				],
-				FORBID_ATTR: ["script"], // all JavaScript should be removed
+				FORBID_TAGS: ["script", "form"], // all JavaScript should be removed
 				ALLOW_UNKNOWN_PROTOCOLS: true, // allow link href protocols like myapp:// etc
 			});
 
@@ -288,9 +288,12 @@ export default {
 			});
 		},
 
-		// Convert plain text to HTML including anchor links
+		// Convert plain text to HTML including anchor links.
+		// Only <a> tags are permitted in the output (enforced by DOMPurify).
 		textToHTML(s) {
-			let html = s;
+			// Strip the Unicode placeholder characters used below so that attacker-
+			// controlled input cannot pre-inject fake HTML tags via those chars.
+			let html = s.replace(/(˱˱˱|ˠˠˠ|˲˲˲)/gu, "");
 
 			// RFC2396 appendix E states angle brackets are recommended for text/plain emails to
 			// recognize potential spaces in between the URL
@@ -320,7 +323,10 @@ export default {
 				.replace(/˲˲˲/g, ">")
 				.replace(/ˠˠˠ/g, '"');
 
-			return html;
+			return DOMPurify.sanitize(html, {
+				ALLOWED_TAGS: ["a"],
+				ALLOWED_ATTR: ["href", "target", "rel"],
+			});
 		},
 	},
 };
@@ -779,6 +785,7 @@ export default {
 						:srcdoc="sanitizedHTML"
 						frameborder="0"
 						style="width: 100%; height: 100%; background: #fff"
+						sandbox="allow-same-origin allow-popups allow-popups-to-escape-sandbox"
 						@load="resizeIframe"
 					>
 					</iframe>

server/ui-src/components/message/MessageScreenshot.vue

@@ -2,6 +2,7 @@
 import AjaxLoader from "../AjaxLoader.vue";
 import CommonMixins from "../../mixins/CommonMixins";
 import { domToPng } from "modern-screenshot";
+import DOMPurify from "dompurify";
 
 export default {
 	components: {
@@ -41,18 +42,38 @@ export default {
 			h = h.replace(/<o:/gm, "<"); // replace `<o:p>` tags with `<p>`
 			h = h.replace(/<\/o:/gm, "</"); // replace `</o:p>` tags with `</p>`
 
+			// Sanitize HTML before writing to the temporary document.
+			// This removes <script>, <noscript>, inline event handlers (on*),
+			// SVG <animate>/<set> with xlink:href and other active content
+			// that manual tag removal would miss.
+			h = DOMPurify.sanitize(h, {
+				WHOLE_DOCUMENT: true,
+				FORCE_BODY: false,
+				ADD_TAGS: ["link", "meta", "o:p", "style"],
+				ADD_ATTR: [
+					"bordercolor",
+					"charset",
+					"content",
+					"hspace",
+					"http-equiv",
+					"itemprop",
+					"itemscope",
+					"itemtype",
+					"vertical-align",
+					"vlink",
+					"vspace",
+					"xml:lang",
+					"background", // needed for background= URL replacement below
+				],
+				FORBID_TAGS: ["script", "noscript"],
+			});
+
 			// create temporary document to manipulate
 			const doc = document.implementation.createHTMLDocument();
 			doc.open();
 			doc.writeln(h);
 			doc.close();
 
-			// remove any <script> tags
-			const scripts = doc.getElementsByTagName("script");
-			for (const i of scripts) {
-				i.parentNode.removeChild(i);
-			}
-
 			// replace any url(...) links in <style> blocks
 			const styles = doc.getElementsByTagName("style");
 			for (const i of styles) {
@@ -117,11 +138,7 @@ export default {
 
 		// HTML decode function
 		decodeEntities(s) {
-			const e = document.createElement("div");
-			e.innerHTML = s;
-			const str = e.textContent;
-			e.textContent = "";
-			return str;
+			return new DOMParser().parseFromString(s, "text/html").body.textContent;
 		},
 
 		doScreenshot() {
@@ -143,11 +160,18 @@ export default {
 
 			const body = i.contentWindow.document.querySelector("body");
 
+			// Add body padding to prevent content touching edge of screenshot.
+			body.style.padding = "20px";
+
 			// take screenshot of iframe
 			domToPng(body, {
 				backgroundColor: "#ffffff",
-				height: i.contentWindow.document.body.scrollHeight + 20,
+				height: i.contentWindow.document.body.scrollHeight,
 				width,
+				// remove the transparent 8px top and left gap from html object (default browser margins).
+				style: {
+					margin: "0",
+				},
 			}).then((dataUrl) => {
 				const link = document.createElement("a");
 				link.download = this.message.ID + ".png";

server/ui-src/mixins/CommonMixins.js

@@ -20,9 +20,16 @@ export default {
 		return {
 			loading: 0,
 			tagColorCache: {},
+			copiedText: {}, // used for clipboard copy feedback
 		};
 	},
 
+	computed: {
+		copyToClipboardSupported() {
+			return !!navigator.clipboard;
+		},
+	},
+
 	methods: {
 		resolve(u) {
 			return this.$router.resolve(u).href;
@@ -222,12 +229,15 @@ export default {
 		allAttachments(message) {
 			const a = [];
 			for (const i in message.Attachments) {
+				message.Attachments[i].ContentDisposition = "Attachment";
 				a.push(message.Attachments[i]);
 			}
 			for (const i in message.OtherParts) {
+				message.OtherParts[i].ContentDisposition = "Other";
 				a.push(message.OtherParts[i]);
 			}
 			for (const i in message.Inline) {
+				message.Inline[i].ContentDisposition = "Inline";
 				a.push(message.Inline[i]);
 			}
 
@@ -288,5 +298,21 @@ export default {
 
 			return this.tagColorCache[s];
 		},
+
+		// Copy to clipboard functionality
+		copyToClipboard(text) {
+			navigator.clipboard.writeText(text).then(
+				() => {
+					this.copiedText[text] = true;
+					setTimeout(() => {
+						delete this.copiedText[text];
+					}, 2000);
+				},
+				() => {
+					// failure
+					alert("Failed to copy to clipboard");
+				},
+			);
+		},
 	},
 };

server/ui-src/stores/mailbox.js

@@ -2,6 +2,21 @@
 
 import { reactive, watch } from "vue";
 
+// Parse and validate a string[] from localStorage, returning [] on any invalid value.
+const storageToStringArray = (key) => {
+	try {
+		const raw = localStorage.getItem(key);
+		if (!raw) return [];
+		const parsed = JSON.parse(raw);
+		if (Array.isArray(parsed) && parsed.every((v) => typeof v === "string")) {
+			return parsed;
+		}
+	} catch {
+		// ignore malformed JSON
+	}
+	return [];
+};
+
 // global mailbox info
 export const mailbox = reactive({
 	total: 0, // total number of messages in database
@@ -20,9 +35,7 @@ export const mailbox = reactive({
 	appInfo: {}, // application information
 	uiConfig: {}, // configuration for UI
 	lastMessage: false, // return scrolling
-	defaultReleaseAddresses: localStorage.getItem("defaultReleaseAddresses")
-		? JSON.parse(localStorage.getItem("defaultReleaseAddresses"))
-		: [], // default release addresses for released messages
+	defaultReleaseAddresses: storageToStringArray("defaultReleaseAddresses"), // default release addresses for released messages
 
 	// settings
 	showTagColors: !localStorage.getItem("hideTagColors"),
@@ -32,6 +45,7 @@ export const mailbox = reactive({
 	timeZone: localStorage.getItem("timeZone")
 		? localStorage.getItem("timeZone")
 		: Intl.DateTimeFormat().resolvedOptions().timeZone,
+	showAttachmentDetails: localStorage.getItem("showAttachmentDetails"), // show attachment details
 });
 
 watch(
@@ -106,3 +120,14 @@ watch(
 		}
 	},
 );
+
+watch(
+	() => mailbox.showAttachmentDetails,
+	(v) => {
+		if (v) {
+			localStorage.setItem("showAttachmentDetails", "1");
+		} else {
+			localStorage.removeItem("showAttachmentDetails");
+		}
+	},
+);

server/ui-src/views/MessageView.vue

@@ -151,8 +151,9 @@ export default {
 						for (const i in d.Inline) {
 							const a = d.Inline[i];
 							if (a.ContentID !== "") {
+								const escapedCID = a.ContentID.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
 								d.HTML = d.HTML.replace(
-									new RegExp("(=[\"']?)(cid:" + a.ContentID + ")([\"|'|\\s|\\/|>|;])", "g"),
+									new RegExp("(=[\"']?)(cid:" + escapedCID + ")([\"'|\\s|\\/|>|;])", "g"),
 									"$1" + this.resolve("/api/v1/message/" + d.ID + "/part/" + a.PartID) + "$3",
 								);
 							}
@@ -171,8 +172,9 @@ export default {
 						for (const i in d.Attachments) {
 							const a = d.Attachments[i];
 							if (a.ContentID !== "") {
+								const escapedCID = a.ContentID.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
 								d.HTML = d.HTML.replace(
-									new RegExp("(=[\"']?)(cid:" + a.ContentID + ")([\"|'|\\s|\\/|>|;])", "g"),
+									new RegExp("(=[\"']?)(cid:" + escapedCID + ")([\"'|\\s|\\/|>|;])", "g"),
 									"$1" + this.resolve("/api/v1/message/" + d.ID + "/part/" + a.PartID) + "$3",
 								);
 							}

server/ui/api/v1/swagger.json

@@ -1345,9 +1345,27 @@
       "x-go-package": "github.com/axllent/mailpit/internal/stats"
     },
     "Attachment": {
-      "description": "Attachment struct for inline and attachments",
+      "description": "Attachment struct for inline images and attachments",
       "type": "object",
       "properties": {
+        "Checksums": {
+          "description": "File checksums",
+          "type": "object",
+          "properties": {
+            "MD5": {
+              "description": "MD5 checksum hash of file",
+              "type": "string"
+            },
+            "SHA1": {
+              "description": "SHA1 checksum hash of file",
+              "type": "string"
+            },
+            "SHA256": {
+              "description": "SHA256 checksum hash of file",
+              "type": "string"
+            }
+          }
+        },
         "ContentID": {
           "description": "Content ID",
           "type": "string"

server/webhook/webhook.go

@@ -5,6 +5,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"net/http"
+	"sync"
 	"time"
 
 	"github.com/axllent/mailpit/config"
@@ -13,12 +14,18 @@ import (
 )
 
 var (
-	// RateLimit is the minimum number of seconds between requests
+	// RateLimit is the minimum number of seconds between requests.
+	// Additional requests within this period will be ignored until
+	// the time has elapsed.
 	RateLimit = 1
 
+	// Delay is the number of seconds to wait before sending each webhook request
+	// This can allow for other processing to complete before the webhook is triggered.
+	Delay = 0
+
 	rl rate.Sometimes
 
-	rateLimiterSet bool
+	once sync.Once
 )
 
 // Send will post the MessageSummary to a webhook (if configured)
@@ -27,18 +34,22 @@ func Send(msg any) {
 		return
 	}
 
-	if !rateLimiterSet {
+	once.Do(func() {
 		if RateLimit > 0 {
 			rl = rate.Sometimes{Interval: time.Duration(RateLimit) * time.Second}
 		} else {
-			// run 1000 per second - ie: do not limit
-			rl = rate.Sometimes{First: 1000, Interval: time.Second}
+			// allow every request
+			rl = rate.Sometimes{Every: 1}
 		}
-		rateLimiterSet = true
-	}
+	})
+
+	rl.Do(func() {
+		go func() {
+			// apply delay if configured
+			if Delay > 0 {
+				time.Sleep(time.Duration(Delay) * time.Second)
+			}
 
-	go func() {
-		rl.Do(func() {
 			b, err := json.Marshal(msg)
 			if err != nil {
 				logger.Log().Errorf("[webhook] invalid data: %s", err.Error())
@@ -58,19 +69,18 @@ func Send(msg any) {
 				req.Header.Set("Mailpit-Label", config.Label)
 			}
 
-			client := &http.Client{}
+			client := &http.Client{Timeout: 5 * time.Second}
 			resp, err := client.Do(req)
 			if err != nil {
 				logger.Log().Errorf("[webhook] error sending data: %s", err.Error())
 				return
 			}
+			defer func() { _ = resp.Body.Close() }()
 
 			if resp.StatusCode < 200 || resp.StatusCode > 299 {
 				logger.Log().Warnf("[webhook] %s returned a %d status", config.WebhookURL, resp.StatusCode)
 				return
 			}
-
-			_ = resp.Body.Close()
-		})
-	}()
+		}()
+	})
 }

server/websockets/client.go

@@ -35,6 +35,10 @@ var upgrader = websocket.Upgrader{
 	ReadBufferSize:    1024,
 	WriteBufferSize:   1024,
 	EnableCompression: true,
+	CheckOrigin: func(_ *http.Request) bool {
+		// origin is checked via server.go's CORS settings
+		return true
+	},
 }
 
 // Client is a middleman between the websocket connection and the hub.
@@ -94,7 +98,7 @@ func (c *Client) writePump() {
 
 			// Add queued chat messages to the current websocket message.
 			n := len(c.send)
-			for i := 0; i < n; i++ {
+			for range n {
 				_, _ = w.Write(newline)
 				_, _ = w.Write(<-c.send)
 			}
@@ -143,5 +147,5 @@ func ServeWs(hub *Hub, w http.ResponseWriter, r *http.Request) {
 func basicAuthResponse(w http.ResponseWriter) {
 	w.Header().Set("WWW-Authenticate", `Basic realm="Login"`)
 	w.WriteHeader(http.StatusUnauthorized)
-	_, _ = w.Write([]byte("Unauthorised.\n"))
+	_, _ = w.Write([]byte("Unauthorized.\n"))
 }

server/websockets/hub.go

@@ -27,7 +27,7 @@ type Hub struct {
 // WebsocketNotification struct for responses
 type WebsocketNotification struct {
 	Type string
-	Data interface{}
+	Data any
 }
 
 // NewHub returns a new hub configuration
@@ -69,7 +69,7 @@ func (h *Hub) Run() {
 }
 
 // Broadcast will spawn a broadcast message to all connected clients
-func Broadcast(t string, msg interface{}) {
+func Broadcast(t string, msg any) {
 	if MessageHub == nil || len(MessageHub.Clients) == 0 {
 		return
 	}