fix: added bounce attack check

forwardemail · Dec 14, 2024 · 5122857 · 5122857
1 parent 3b85267
commit 5122857
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/helpers/get-bounce-info.js b/helpers/get-bounce-info.js
@@ -327,6 +327,15 @@ function getBounceInfo(err) {
   if (bounceInfo.category === 'spam' && err.truthSource === 'posteo.de')
     bounceInfo.category = 'blocklist';
 
+  // bounce attack
+  // >  550 Suspected bounce attacks
+  // <https://service.mail.qq.com/detail/122/57>
+  if (
+    response.includes('bounce attack') ||
+    response.includes('misdirected bounce')
+  )
+    bounceInfo.category = 'spam';
+
   return bounceInfo;
 }