Hello everyone,
since almost two weeks i have the following logfile entries every second
To me it looks like someone is trying to connect to my mail server.
Somebody can tell me if it's harmless and if not, how I can stop it?
Many thanks and regards, Tom
since almost two weeks i have the following logfile entries every second
Code:
postfix/smtpd[9353]: connect from unknown[xx.xxx.xx.xx]
postfix/smtpd[9353]: disconnect from unknown[xx.xxx.xx.xx] ehlo=1 auth=0/1 rset=0/1 quit=1 commands=2/4
postfix/smtpd[9353]: warning: hostname ip-38-41.ZervDNS does not resolve to address xx.xxx.xx.xx: Name or service not known
To me it looks like someone is trying to connect to my mail server.
Somebody can tell me if it's harmless and if not, how I can stop it?
Many thanks and regards, Tom