From 66778c53a61f9c09fa5d1c7bb3d2e8866f8a246c Mon Sep 17 00:00:00 2001
From: Mark Sapiro <mark@msapiro.net>
Date: Fri, 18 Dec 2020 12:04:50 -0800
Subject: Added recognition for a non-compliant DSN from an unknown MTA.

---
 Mailman/Bouncers/SimpleMatch.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Mailman')

diff --git a/Mailman/Bouncers/SimpleMatch.py b/Mailman/Bouncers/SimpleMatch.py
index 6de9a858..b7889d21 100644
--- a/Mailman/Bouncers/SimpleMatch.py
+++ b/Mailman/Bouncers/SimpleMatch.py
@@ -199,6 +199,10 @@ PATTERNS = [
     (_c(r'wasn\'t able to deliver the following message'),
      _c(r'---Below this line is a copy of the message.'),
      _c(r'To: (?P<addr>[^\s@]+@[^\s@]+)')),
+    # From some unknown MTA
+    (_c(r'This is a delivery failure notification message'),
+     _c(r'The problem appears to be'),
+     _c(r'-- (?P<addr>[^\s@]+@[^\s@]+)')),
     # Next one goes here...
     ]
 
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