[BC] Comcast Blacklist

Ronald J. Dot'o Sr. ron.doto at comcast.net
Fri Jan 4 12:37:36 CST 2008


I was having trouble getting through with my Comcast account and 
called them.  It's working now. Below is what their solution was.

Ron D


----- Original Message -----
From: <mailto:abuse94 at comcast.net>abuse94 at comcast.net
To: <mailto:ron.doto at comcast.net>Ronald J. Dot'o Sr.
Sent: Friday, January 04, 2008 10:11
Subject: Re: Fw: [BC] Comcast Blacklist

Regarding this Service Call and the report that "Comcast users are 
unable to send email to <http://www.radiolists.net>www.radiolists.net"

The issue is external to Comcast. The domain "radiolists.net" is 
apparently using an out-dated DUL that classifies our QMTAs as dynamic space

We confirmed the DUL block via a manual telnet test from the QMTA. 
Here is the SMTP telnet test results:

220 mailscanner.virtbiz.com ESMTP Sendmail 8.13.1/8.11.6; Wed, 2 Jan 
2008 15:50:18 -0600

helo comcast.net

250 mailscanner.virtbiz.com Hello 
qmta01.westchester.pa.mail.comcast.net [76.96.62.16], pleased to meet you

mail from:abuse59 at comcast.net

553 5.3.0 REJECT Comcast Cable Communications rejecting relay from 
cablemodem 76.96.0.0 - 76.127.255.255`





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