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tickets #51092
closedtemporarily undeliverable mails (status 4xx) cause mlmmj "bouncing messages" notification
Start date:
2019-05-05
Due date:
2019-11-01
% Done:
100%
Estimated time:
Description
My mailserver was broken for some hours while the RAID was recovering from a disk replacement (the full story was more interesting[tm], but is OT here). In this time, mail delivery attemps resulted in a 4xx tempfail (logs from anna.infra.o.o):
2019-05-05T00:16:00.470483+00:00 anna postfix/qmgr[12882]: CBAB721F5E:
from=<opensuse-de+bounces-105611-suse=cboltz.de@opensuse.org>, size=15507, nrcpt=1 (queue active)
2019-05-05T00:16:01.876935+00:00 anna postfix/smtp[30737]: CBAB721F5E:
host mail.cboltz.de[88.99.101.17] said: 451 4.3.5 <suse@cboltz.de>: Recipient address rejected: Server configuration problem (in reply to RCPT TO command)
2019-05-05T00:16:02.897444+00:00 anna postfix/smtp[30737]: CBAB721F5E:
to=<suse@cboltz.de>, relay=faulpelz.cboltz.de[88.99.101.17]:25, delay=10743, delays=10741/0.39/1/1, dsn=4.3.5, status=deferred (host faulpelz.cboltz.de[88.99.101.17] said:
451 4.3.5 <suse@cboltz.de>: Recipient address rejected: Server configuration problem (in reply to RCPT TO command))
Some hours later, my mailserver was back and the mail finally delivered.
Interestingly, I got a "bouncing messages" mail from mlmmj listing this mail as "bounced message" while it was "only" delayed.
It would be a good idea if mlmmj would only honor 5xx rejects, not 4xx tempfails.
An alternative might be to change delay_warning_time = 1h
on anna to a higher value so that mlmmj doesn't get too many delay notifications.
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