1 files changed, 7 insertions, 7 deletions

diff --git a/Mailman/Queue/BounceRunner.py b/Mailman/Queue/BounceRunner.py
index 02524cabc..9f46b59af 100644
--- a/Mailman/Queue/BounceRunner.py
+++ b/Mailman/Queue/BounceRunner.py
@@ -133,14 +133,14 @@ class BounceRunner(Runner):
 
 def verp_bounce(mlist, msg):
     bmailbox, bdomain = Utils.ParseEmail(mlist.GetBouncesEmail())
-    # Sadly not every MTA bounces VERP messages correctly.  Fall back to
-    # Delivered-to: and Apparently-To:, and then short-circuit if we still
-    # don't have anything to work with.  Note that there can be multiple
-    # Delivered-To: headers so we need to search them all (and we don't
-    # worry about false positives for forwarded email, because only one
-    # should match VERP_REGEXP).
+    # Sadly not every MTA bounces VERP messages correctly, or consistently.
+    # Fall back to Delivered-To: (Postfix), Envelope-To: (Exim) and
+    # Apparently-To:, and then short-circuit if we still don't have anything
+    # to work with.  Note that there can be multiple Delivered-To: headers so
+    # we need to search them all (and we don't worry about false positives for
+    # forwarded email, because only one should match VERP_REGEXP).
     vals = []
-    for header in ('to', 'delivered-to', 'apparently-to'):
+    for header in ('to', 'delivered-to', 'envelope-to', 'apparently-to'):
         vals.extend(msg.get_all(header, []))
     for field in vals:
         to = parseaddr(field)[1]