2 files changed, 12 insertions, 0 deletions

diff --git a/Mailman/MemberAdaptor.py b/Mailman/MemberAdaptor.py
index e54a18ba7..00fe0b9f3 100644
--- a/Mailman/MemberAdaptor.py
+++ b/Mailman/MemberAdaptor.py
@@ -196,6 +196,15 @@ class MemberAdaptor:
         """
         raise NotImplemented
 
+    def getBouncingMembers(self):
+        """Return the list of members who have outstanding bounce information.
+
+        This list of members doesn't necessarily overlap with
+        getDeliveryStatusMembers() since getBouncingMembers() will return
+        member who have bounced but not yet reached the disable threshold.
+        """
+        raise NotImplemented
+
     def getBounceInfo(self, member):
         """Return the member's bounce information.
 
diff --git a/Mailman/OldStyleMemberships.py b/Mailman/OldStyleMemberships.py
index d91cc8e8a..cc578d381 100644
--- a/Mailman/OldStyleMemberships.py
+++ b/Mailman/OldStyleMemberships.py
@@ -155,6 +155,9 @@ class OldStyleMemberships(MemberAdaptor.MemberAdaptor):
         return [member for member in self.getMembers()
                 if self.getDeliveryStatus(member) in status]
 
+    def getBouncingMembers(self):
+        return [member.lower() for member in self.__mlist.bounce_info.keys()]
+
     def getBounceInfo(self, member):
         self.__assertIsMember(member)
         return self.__mlist.bounce_info.get(member.lower())