Mail stuck in mail queue

[Nicola Urbinati]

User name: Nicola Urbinati

TITLE

Mail stuck in mail queue

PRODUCT, VERSION, OPERATING SYSTEM, ARCHITECTURE

Ubuntu 18.04.5 LTS,
Plesk Obsidian
Version 18.0.29 Update #1, last updated on Aug 11, 2020 06:34 AM
4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

PROBLEM DESCRIPTION

All mail is stuck in mail queue, both in and out of the server, since almost four days. The mail queue showa a wrong age (almost 23h ago for mails of minutes ago).
Tried to restart postfix, amavis, dovecot withot result. Amavis seems not to be running on the default port.
Only way to solve is restarting the server.

STEPS TO REPRODUCE

I donot know, I thik it has been an update of some kind (Plesk or system)

ACTUAL RESULT

All mail stuck in mail queue

EXPECTED RESULT

Mail flowing

ANY ADDITIONAL INFORMATION



YOUR EXPECTATIONS FROM PLESK SERVICE TEAM

Help with sorting out

 

[IgorG]

Could you provide additional related details from maillog? Error messages, etc.

 

[Nicola Urbinati]

This is what happens, it seems to be related to amavis:

postfix/smtp[29374]: E7DE4124AA1D: to=<[email protected]>, relay=none, delay=38321, delays=38321/0.04/0.01/0, dsn=4.4.1, status=deferred (connect to 127.0.0.1[127.0.0.1]:10024: Connection refused)

Thing is I did not do anything, restarting the services (postfix, dovecot, amavis, ...) did not solve the issue, just restarting the server did.
Now it seems to be stable (almost two days).