> using Barracuda's RBL for high scoring, and not for outright blocking.

I think that in this day and age, this is true for *any* list - black-, white-, 
reputation- (yes, even ours).  Whitelists can also have false positives - even 
pay for play ones, because while full-on spammers may not pay to be on a 
whitelist, or for reputation certification, etc....,  organizations that are 
whitehat can experience personnel changes in their email and marketing 
departments, and an organization can go from blindingly white to a shade of 
grey overnight. 

Plus, even more now than ever, what one receiving system may think of as 'spam' 
another may think of as 'legitimate email our users just didn't know they 
wanted'.  In fact, that's why we take pains to make a point that our lists are 
*not* whitelists - they are lists where receivers can get information about the 
specific practices of the senders - so, like Rob said - use them for scoring, 
not for outright blocking (well, accepting, in our case).

Anne

Anne P. Mitchell, 
Attorney at Law
Legislative Consultant
CEO/President, 
SuretyMail Email Reputation Certification and Inbox Delivery Assistance
http://www.SuretyMail.com/
http://www.SuretyMail.eu/

Author: Section 6 of the CAN-SPAM Act of 2003 (the Federal anti-spam law)
Member, California Bar Cyberspace Law Committee
Member, Colorado Cybersecurity Consortium
Member, Asilomar Microcomputer Workshop Committee
Ret. Professor of Law, Lincoln Law School of San Jose
Ret. Chair, Asilomar Microcomputer Workshop
amitch...@isipp.com | @AnnePMitchell
Facebook/AnnePMitchell  | LinkedIn/in/annemitchell



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