On 09/05/2017 01:14 PM, David Krantz wrote:

I have a question on bounce handling. I get the impression that bounces are just lost and neither handled nor forwarded to the list admin. Is this a known problem? I am running mailman from git, but about version 3.1 and use postfix.

Bounce processing in Mailman 3 is currently not done. See https://gitlab.com/mailman/mailman/issues/343.

I find lots of things in the bounceevents table. Is there any way to find out more on these events? I probably can configure postfix to send listname-bounce@domain to an admin adress. Or for that matter hack mailman to send it to the correct admin.

Your ideas are possible. Until it's fixed, you could just make postfix forward the listname-bounces address to listname-owner. I think this will then get the LMTP runner to send them to the owner.

Also the DKIM mitigation does not seem to detect DKIM domains. If I force the mitigation for all mails it works but that of course has annoying consequences although mostly cosmetic. This has caused quite a number of bounces for my lists (as well as being temporarily banned by at least Microsoft).

I assume you mean DMARC mitigation. It should work for From: domains that publish DMARC policy 'reject' or 'quarantine' without setting DMARC Mitigate unconditionally.

What if anything do you see in mailman.log?

-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan