On 11/25/25 8:51 AM, [email protected] wrote:
Where do I set forward_unrecognized_bounces_to ?  I can't find documentation on 
this.

If you have Postorius it's Settings -> Bounce Processing -> Forward unrecognized bounces. It is a list attribute with 3 possible values which are discard them, forward to list owners/moderators or forward to the site admin. The default value when lists are created is forward to list owners/moderators.

However none of this is relevant to your situation because the bounces you are getting that result in the Bounce message for a non subscriber log messages you are seeing are not unrecognized. As I said at https://lists.mailman3.org/archives/list/[email protected]/message/RPZHK3HEYP4IJBWJUHDZRDDNVUW6FJB3/ I think these are spam sent to the list-bounces address that one of the heuristic recognizers treats as a real DSN and parses those non-addresses.

In order to see the actual messages, you will have to configure your MTA to deliver them to a human or you could apply this patch
```
--- a/src/mailman/runners/bounce.py
+++ b/src/mailman/runners/bounce.py
@@ -49,6 +49,7 @@ class BounceRunner(Runner):
         # List isn't doing bounce processing?
         if not mlist.process_bounces:
             return False
+        maybe_forward(mlist, msg)
         # Try VERP detection first, since it's quick and easy
         context = BounceContext.normal
         addresses = StandardVERP().get_verp(mlist, msg)
```
to copy all bounce messages to the forward_unrecognized_bounces_to destination.

--
Mark Sapiro <[email protected]>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan
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