DFS wrote on 04/20/2006 09:02:24 AM: > This is a good idea until spammers start mutating their images.
The same can be said for any spam blockling technique: It's effective until they work around it. Grey listing worked until they started honoring 450 responses. Bayes worked until the started poisoning it. Subtracting points for valid SPF was considered a good idea until spammers started registering SPF records. How long would it take for spammers to start generating a new graphic for each message? How much would it slow down the sending for them to do so? _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
