Receive no new mail after reboot

Last month I migrate my Univention Zarafa to Kopano,
Overall it works fine, some users have a zpush issue, but the server itself works as expected.
But now after the server reboot, we don’t receive any new mail.

I’m me not aware that we change any setting.
But the mail.log show me the following:

relay=none, delay=21486, delays=21486/0.04/0/0, dsn=4.4.1, status=deferred (connect to[]:10024: Connection refused)

Hopefully one of you can tell me how I can solve this issue!

Hello @goudduif ,

on that specific port ClamAV is listening afaik. Can you check if the service is running?

Thanks, for your quick response!!
I just found this in /var/mail.err

amavis[2929]: (!!)TROUBLE in pre_loop_hook: config: no rules were found!  Do you need to run 'sa-update'?
spamd[3408]: config: no rules were found! Do you need to run 'sa-update'?

And when I run:
service amavis start
I receive only

Starting amavisd: amavisd-new.

@goudduif from that output I would suggest to run sa-update and then try to restart clamav again. If that does not help I would suggest contacting Univention. Maybe someone on their forum has had similar problems.

This solve the issue!