I'm trying to reconfigure our mail server to start blocking spam instead of tagging it with SpamAssassin and trusting our users to set up their own filters based on SpamAssassin. Blocking messages based on the SBL seemed like a good first step. In the week or so since I've started using the SBL, it's caught about half of the incoming mail to our campus, but it's also caused 4-5 false positives (a spammer's company that happens to put out a good newsletter, legitimate mailing lists hosted by spammers, a legitimate company that uses a spam-friendly ISP as their hosting provider). This surprised me, since I was under the impression that the SBL was probably the most trusted and most conservative of the blacklists.
Should I give up on blocking via the SBL? Or should I just accept that if I'm going to block mail, I'm going to block a few legitimate ones by mistake? I know that others on this list use the SBL - have you had any similar problems?
Thanks.
Josh Kelley _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
