diff --git a/legacy/ui/legacy/src/main/java/com/fsck/k9/view/K9WebViewClient.kt b/legacy/ui/legacy/src/main/java/com/fsck/k9/view/K9WebViewClient.kt
index e2e102d851c..a8492676558 100644
--- a/legacy/ui/legacy/src/main/java/com/fsck/k9/view/K9WebViewClient.kt
+++ b/legacy/ui/legacy/src/main/java/com/fsck/k9/view/K9WebViewClient.kt
@@ -6,6 +6,7 @@ import android.content.Intent
 import android.net.Uri
 import android.os.Build
 import android.provider.Browser
+import android.webkit.WebResourceError
 import android.webkit.WebResourceRequest
 import android.webkit.WebResourceResponse
 import android.webkit.WebView
@@ -21,6 +22,7 @@ import net.thunderbird.core.logging.legacy.Log
 /**
  * [WebViewClient] that intercepts requests for `cid:` URIs to load the respective body part.
  */
+@Suppress("TooManyFunctions")
 class K9WebViewClient(
     private val clipboardManager: ClipboardManager,
     private val attachmentResolver: AttachmentResolver?,
@@ -120,6 +122,14 @@ class K9WebViewClient(
         onPageFinishedListener?.onPageFinished()
     }
 
+    @RequiresApi(Build.VERSION_CODES.M)
+    override fun onReceivedError(view: WebView, request: WebResourceRequest, error: WebResourceError) {
+        super.onReceivedError(view, request, error)
+        if (request.isForMainFrame) {
+            Log.d("Message WebView load error: %d %s for %s", error.errorCode, error.description, request.url)
+        }
+    }
+
     companion object {
         private const val CID_SCHEME = "cid"
         private const val FILE_SCHEME = "file"