On 8/8/25 11:43, jesper.holck--- via Mailman-users wrote:
I recently followed the instructions here
https://github.com/g4rf/dockerized-mailcow-mailman, and was able to create a
new Mailman 3, Debian-based installation. I then followed the instructions here
https://docs.mailman3.org/en/latest/migration.html in order to migrate from my
old, Centos-based installation, to the new, Debian-based installation. It
seemed to work well, but unfortunately a problem showed up.
Whenever someone posted to one of the lists on the new installation, the
messages were rejected by Postfix:
postfix-mailcow-1 | Aug 5 20:55:48 ef2b760c2e61 postfix/cleanup[8681]: B7B856099EC:
message-id=<[email protected]>
postfix-mailcow-1 | Aug 5 20:55:49 ef2b760c2e61 postfix/cleanup[8681]: B7B856099EC:
milter-reject: END-OF-MESSAGE from unknown[172.22.1.1]: 5.7.1 This message does not meet our
delivery requirements; from=<[email protected]> to=<[email protected]>
proto=ESMTP helo=<[172.19.199.4]>
postfix-mailcow-1 | Aug 5 20:55:50 ef2b760c2e61 postfix/cleanup[8681]: 216D36099EC:
message-id=<[email protected]>
postfix-mailcow-1 | Aug 5 20:55:50 ef2b760c2e61 postfix/cleanup[8681]: 216D36099EC:
milter-reject: END-OF-MESSAGE from unknown[172.22.1.1]: 5.7.1 This message does not meet our
delivery requirements; from=<[email protected]> to=<[email protected]>
proto=ESMTP helo=<[172.19.199.4]>
The above messages are not messages normally seen from Postfix. They
apparently come from some mailcow milter.
So, for each of the existing lists, I had to delete the old list and create a
new one - with the same name and the same users. After this, everything seems
to work as expected.
I can think of nothing that `mailman import21` would do that would be
different from creating a list, configuring it and adding members.
Since you are following a third party how-to, please see
https://wiki.list.org/x/12812344 - perhaps reporting this at
https://github.com/g4rf/dockerized-mailcow-mailman/issues would be
appropriate.
--
Mark Sapiro <[email protected]> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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