On 9/26/23 11:29, Mohsen Masoudfar wrote:
I'm dealing with the same issue. Upon reviewing the logs, I've noticed a significant number of bounced emails for a particular mailing list. Gmail users have reported not receiving emails. I haven't been able to locate the "munge from" information. My current setup is using Mailman 3.1.1. I read it has been introduced in 3.2.
DMARC mitigations were introduced in Mailman 3.1.0. They should be available in 3.1.1. They were first exposed in Postorius 1.1.0.
Where are you looking for DMARC mitigations?
The Question is what to do with Mailman 3.1.1, if the upgrade is not an option.
I get in the logs messages like below with several Queue-ids:
Sep 25 09:03:55 localhost postfix/smtpd[26692]: 147583E927: client=a14-93.smtp-out.amazonses.com[54.240.14.93] Sep 25 09:03:55 localhost postfix/cleanup[26696]: 147583E927: message-id=<0100018acb94b326-fdf39193-144e-4fdc-8faf-0d3df54eb4ee-000000@email.amazonses.com> Sep 25 09:03:55 localhost postfix/qmgr[1298]: 147583E927: from=<>, size=24934, nrcpt=1 (queue active) Sep 25 09:03:55 localhost postfix/lmtp[26697]: 147583E927: to=<listname-bounces@servername>, relay=127.0.0.1[127.0.0.1]:8024, delay=0.03, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (250 Ok) Sep 25 09:03:55 localhost postfix/qmgr[1298]: 147583E927: removed
This only says that some Amazon MTA has relayed a bounce to Mailman. It says nothing about why the message bounced.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan