[BlueOnyx:25162] stalling SMTP

[Meaulnes Legler @ MailList]

hello

I lately get several times a day the Active Monitor message that the SMTP server isn't running and couldn't be restarted. 15min later the all-clear message drops in, everything ok. Thank you BO, Michael and all others for the automatic assistance!:-)

But I still wonder what's the cause of this... I browsed through the log files /var/log/maillog /var/log/messages /var/log/secure with no clues to anything suspicious (or I didn't know what to look for).

The GUI's Security > Failed Logins page mentioned several IPs and two users; I blocked IPs in the APF Firewall Blacklist and suspended the two users. That helped insofar that the SMTP stalls occurred now _only_ a couple of times a day instead of almost hourly...

Any hint what I could do else?

Thank you and best regards

で⊃ Meaulnes Legler
Zurich, Switzerland
+41¦0 44 260-1660

I'm on *Wire* as @meaulnes — https://get.wire.com/
/no more Whatzap and so on!/