On 2014-03-25 postfix-users@postfix.org wrote: > Ansgar Wiechers wrote: >> On 2014-03-25 postfix-users@postfix.org wrote: >>> I was suspecting this already: >>> >>> Mar 25 12:16:56 HOSTNAME postfix/smtpd[6243]: connect from >>> unknown[180.93.167.227] >>> Mar 25 12:16:58 HOSTNAME postfix/smtpd[6243]: disconnect from >>> unknown[180.93.167.227] >>> >>> Something seems to get through possibly should not? >>> I have no idea, what i should fix :-( >> >> Some host connects to your mail server, then disconnects from your >> mail server. Apparently without doing anything else. What problem do >> you perceive here that would require fixing? > > Now, i cannot see, that this connection does or tries ... > I thought to block such things - like rejecting "unknown" clients / > senders as early as possible.
Your server would have to be psychic to detect that a client won't do anything before it actually disconnects without having done anything. > Not needed? No. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky