tobi: > Hi list > > I have disabled SMTP-Auth on my port 25. so this port is only uses to > receive emails for my domains but no relaying is possible. Now I have > bots that try to auth on port 25 by issue > > Out: 250 DSN > In: AUTH LOGIN > Out: 503 5.5.1 Error: authentication not enabled > > the problem is that I cannot find a unique line for this in the logs.
Postfix does not log invalid commands. That would allow a
denial-of-service on the maillog file.
Wietse
