1 files changed, 10 insertions, 0 deletions

diff --git a/src/mailman/interfaces/mailinglist.py b/src/mailman/interfaces/mailinglist.py
index 23d21cd34..7a25544d4 100644
--- a/src/mailman/interfaces/mailinglist.py
+++ b/src/mailman/interfaces/mailinglist.py
@@ -495,6 +495,16 @@ class IMailingList(Interface):
         without any other checks.
         """)
 
+    # Bounces.
+
+    forward_unrecognized_bounces_to = Attribute(
+        """What to do when a bounce contains no recognizable addresses.
+
+        This is an enumeration which specifies what to do with such bounce
+        messages.  They can be discarded, forward to the list owner, or
+        forwarded to the site owner.
+        """)
+
 
 
 class IAcceptableAlias(Interface):