"Strange" maillog entries - am I being used as a relay?

[Peter Koinange]

no seems the person  cannot authenticate so ur okay for now


Peter

On Sat, 02 Apr 2005 08:35:08 -0330, Mike Pelley <mike at pelleys.com> wrote:
> 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 <internal user>: User unknown in 
> local recipient table; from=<> to=<internal User> 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
> 
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