Folks - I noticed some strange errors in my logwatch report and when I checked my maillog I found the entries below. I have SMTPS with TLS set up for authentication. Does this mean I'm being used as a relay?
maillog:Mar 29 09:30:24 zeus postfix/smtpd[26863]: connect from unknown[216.113.195.131] maillog:Mar 29 09:30:24 zeus postfix/smtpd[26863]: setting up TLS connection from unknown[216.113.195.131] maillog:Mar 29 09:30:24 zeus postfix/smtpd[26863]: TLS connection established from unknown[216.113.195.131]: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits) maillog:Mar 29 09:30:25 zeus postfix/smtpd[26863]: 0A1267031D: client=unknown[216.113.195.131] maillog:Mar 29 09:30:25 zeus postfix/smtpd[26863]: 0A1267031D: reject: RCPT from unknown[216.113.195.131]: 450 <wjwwwdk@xxxxxxxxxxx>: User unknown in local recipient table; from=<> to=<wjwwwdk@xxxxxxxxxxx> proto=ESMTP helo=<email.noproblemnetworks.com> maillog:Mar 29 09:30:27 zeus postfix/smtpd[26863]: disconnect from unknown[216.113.195.131]
Thanks, Mike
