Have you tried this form?
http://www.comcastsupport.com/Forms/NET/blockedprovider.asp
Frank
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Raymond L. Corbin
Sent: Tuesday, October 09, 2007 4:30 PM
To: nanog@merit.edu
Subject: Any Comcast Mail/Sysadmins?
Hey,
I'm having a few deliverability issues to a few comcast mail gateways. Is
there any comcast mail/sys admins here or anyone who can get me in contact
with them off list? It would be greately appreciated.
Thanks for the help!
-Ray