Re: Mail Issue

[Gary Maltzen <maltzen () MM COM>]

I wonder if this is similar to a series of mail address scans I saw three months ago. The intent appeared not to be 
delivery of an actual message but (using RCPT TO) to harvest a list of valid e-mail addresses. Each "message" attempt 
would walk through a (dictionary?) list of names. As soon as I blocked one (dial-up) IP the scan re-appeared from 
another SP's block.

-----Original Message----- 
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


----------------------------------------------------------------------------
This list is provided by the SecurityFocus ARIS analyzer service.
For more information on this free incident handling, management 
and tracking system please see: http://aris.securityfocus.com