Postfix: flush emails from the mail queue
August 6, 2022 Leave a comment
Problem:
The customer was getting a lot system alerts even after disabling it. There were a lot of emails in the queue:
# mailq
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
DB13ED78461 21597 Thu May 26 05:39:26 flashgrid@localhost.localdomain
(delivery temporarily suspended: connect to us-smtp-inbound-2.meme.com[~]:25: Connection timed out)
alertdb@test.com
DA31AD9C4B5 21503 Thu May 26 10:32:16 flashgrid@localhost.localdomain
(delivery temporarily suspended: connect to us-smtp-inbound-2.meme.com[~]:25: Connection timed out)
alertdb@test.com
DA701D9AC16 21601 Thu May 26 07:01:06 flashgrid@localhost.localdomain
(delivery temporarily suspended: connect to us-smtp-inbound-1.meme.com[~]:25: Connection timed out)
alertdb@test.com
DA3B9D9C488 21503 Thu May 26 09:31:36 flashgrid@localhost.localdomain
(connect to us-smtp-inbound-1.meme.com[~]:25: Connection timed out)
alertdb@test.com
[...]
Solution:
- To remove all mail from all the queues ( hold, incoming, active and deferred ) , run :
# postsuper -d ALL
- To remove all mails in the deferred queue only, run :
# postsuper -d ALL deferred
About Mariami Kupatadze
DBA Knowledge Base 