[cobalt-users] spam errors??

["Mike Ciesiensky, Jr." <MikeC@xxxxxxxxxxxxxxxxxxxxx>]

Ok, I'm getting the message below in /var/log/maillog.  I've been getting
these 'Postmaster notify' messages send to 'root' and can't figure out why.

I think someone is trying to send stuff through my server, but I'm not sure
what errors would look like if this is happening.  If you know what I'm
talking about, then please help me.  I have POP before SMTP on and I don't
think I'm relaying for people.  Please help.

Thanks,
Mike


---------------------------
MESSAGE IN /VAR/LOG/MAILLOG
---------------------------
Mar 30 15:27:27 www sendmail[20915]: f2ULR9c20915: from=<>, size=34651,
class=0, nrcpts=1, msgid=<200103302127.f2ULR9c20915@www.[SNIP].com>,
proto=SMTP, daemon=MTA, relay=ppp-208-188-24-37.dialup.rcsntx.swbell.net
[208.188.24.37]
Mar 30 15:27:27 www sendmail[20940]: f2ULR9c20915: to=<ecscrubb@xxxxxxxxxx,
michaelc@xxxxxxxxxxxxxx,>, delay=00:00:18, xdelay=00:00:00, mailer=esmtp,
pri=64651, relay=mail2.masterlink.com. [209.176.33.71], dsn=5.1.1, stat=User
unknown
Mar 30 15:27:27 www sendmail[20940]: f2ULR9c20915: f2ULRRc20940: postmaster
notify: User unknown
Mar 30 15:27:27 www sendmail[20940]: f2ULRRc20940: to=admin, delay=00:00:00,
xdelay=00:00:00, mailer=local, pri=64751, dsn=2.0.0, stat=Sent


------------------------
MESSAGE THAT 'ROOT' GETS
------------------------
The original message was received at Fri, 30 Mar 2001 15:28:48 -0600
from ppp-208-188-24-37.dialup.rcsntx.swbell.net [208.188.24.37]
with id f2ULSmc21022

   ----- The following addresses had permanent fatal errors -----
<Ysobelle@xxxxxxx by imo-r18.mx.aol.com (mail_out_v29.14.)>
    (reason: 550 Host unknown)

   ----- Transcript of session follows -----
550 5.1.2 <Ysobelle@xxxxxxx by imo-r18.mx.aol.com (mail_out_v29.14.)>...
Host unknown (Name server: aol.com.by.imo-r18.mx.aol.com: host not found)