In the referenced message, Moe Allen said:

Does anyone have any information concerning IP address blocking, as it relates to Cisco routers. I need to start blocking some of this Forged Spam E-mail. It would be nice if this list is current? thanks Morris Allen VidcomNet, Inc.

Nanog is not the place you are looking for... </Obi-Wan Kenobi> from http://www.nanog.org/isp.html: cisco-nsp-request@puck.nether.net -- Discussion for ISPs using Cisco routers. Mail Abuse Protection System (MAPS.vix.com) Complete overview of the SPAM problem, and the Real-Time Blackhole List for known spammers. SPAM-L Discussion of general SPAM issues. To subscribe, send e-mail to LISTSERV@PEACH.EASE.LSOFT.COM with text 'subscribe SPAM-L your.name'