RE: [ActiveDir] Exchange, and SPAM filters or blacklist or...

[Roger Seielstad]

Title: Message

Ahh, SPAM. I love it. I'll take yours!   Seriously, the only way to reduce the impact of spam on your network is to never accept it. Content filtering works to an extent, but that requires you to accept the mail, therefore taking the resource hit on your network. Not to mention, most spammers are finding ways around content filters anyway.   That means Realtime Blackhole lists, and these are a major double edged sword. On one hand, they stop a LOT of spam. On the other, they can stop a LOT of legitimate traffic. Of the ones out there, the best to date is Spamcop (http://spamcop.net). We're using it with great success, probably resulting in a 70% or more reduction in spam.   The other product (its free) that is looking very good is SpamAssassin. It uses a combination of techniques, and seems to be very stable as well. It uses a scoring system to determine what might or might not be spam, but does leave a lot of that up to the user as well.   Roger -------------------------------------------------------------- Roger D. Seielstad - MTS MCSE MS-MVP Sr. Systems Administrator Inovis Inc. -----Original Message----- From: rick reynolds [mailto:[EMAIL PROTECTED] Sent: Saturday, June 07, 2003 1:26 AM To: [EMAIL PROTECTED] Subject: [ActiveDir] Exchange, and SPAM filters or blacklist or... Does anyone have recommendations for a Spam filter or black list service that works well. I have a few clients that are getting thousands of Spam messages a day. And need to know of what works well.   Rick Reynolds MCSE 2000, CCNA, CISSP