diff --git a/server/apiv1/webui.go b/server/apiv1/webui.go
index d5a79aa..c8f4107 100644
--- a/server/apiv1/webui.go
+++ b/server/apiv1/webui.go
@@ -29,6 +29,9 @@ type webUIConfiguration struct {
 
 	// Whether SpamAssassin is enabled
 	SpamAssassin bool
+
+	// Whether messages with duplicate IDs are ignored
+	DuplicatesIgnored bool
 }
 
 // WebUIConfig returns configuration settings for the web UI.
@@ -59,6 +62,7 @@ func WebUIConfig(w http.ResponseWriter, _ *http.Request) {
 
 	conf.DisableHTMLCheck = config.DisableHTMLCheck
 	conf.SpamAssassin = config.EnableSpamAssassin != ""
+	conf.DuplicatesIgnored = config.IgnoreDuplicateIDs
 
 	bytes, _ := json.Marshal(conf)
 
diff --git a/server/ui-src/components/AboutMailpit.vue b/server/ui-src/components/AboutMailpit.vue
index b2af888..a36f324 100644
--- a/server/ui-src/components/AboutMailpit.vue
+++ b/server/ui-src/components/AboutMailpit.vue
@@ -259,7 +259,7 @@ export default {
 														{{ formatNumber(mailbox.appInfo.RuntimeStats.SMTPRejected) }}
 													</td>
 												</tr>
-												<tr>
+												<tr v-if="mailbox.uiConfig.DuplicatesIgnored">
 													<td>
 														SMTP messages ignored
 													</td>