Security Incidents mailing list archives

Re: Mail Issue


From: Harri Nyman <harri () midian net>
Date: Mon, 30 Jul 2001 21:51:26 +0300

Stephen Malenshek wrote:

I sent this same information along with the detailed logs to Road Runner, but
I have yet to hear anything back.  In the last 24 hours, my mail server has
denyied over 52,000 messages from this address.  I have added deny lists to
the firewall, but it does not match the addresses listed here.  Does anyone
have any ideas of what is happening here?  Thanks in advance for any
assistance given.

Jul 29 21:39:57 pop3 sendmail[31890]: f6U2duU31890:
from=<ellievowell () hotmail com>, size=0, class=0, nrcpts=0, proto=SMTP,
daemon=MTA, relay=dt181nd1.tampabay.rr.com [24.92.209.209]
Jul 29 21:39:59 pop3 sendmail[31900]: f6U2dwU31900: ruleset=check_rcpt,
arg1=<rstelz () concentric net>, relay=dt181nd1.tampabay.rr.com [24.92.209.209],
reject=550 5.7.1 <rstelz () concentric net>... Relaying denied
Jul 29 21:39:59 pop3 sendmail[31900]: f6U2dwU31900: lost input channel from
dt181nd1.tampabay.rr.com [24.92.209.209] to MTA after rcpt

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I have been experiencing HUGE spam buildup from RoadRunner sites lately,
it appears
they have quite a number of open e-mail relays in their network...

Harri Nyman
Midian Communications

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