This has been our experience as well. We block on average 70,000 messages a day for our 1300 clients. Around 5,000 mails are delivered daily. The majority of the blocking is done through greylisting, postfix rules, and RBLs. The users are passive; ~2% of the mail recipients in our organization actively use DSpam.
Pictorially, our setup is as follows: Postfix -> postgrey -> RBL -> SpamAssassin -> DSpam -> Clamav. The mail filter's performance is being graphed using the "mailgraph" utility written by David Schweikert. We're pleased with the setup, though it took a bit of tuning. -Gary ~~~~~~~~~~~~~~~~~~~~~~~~~~ Gary J. Waters Jr. Mohave County Information Technology 700 W. Beale St. Kingman, AZ 86401 (928)753-0740x4137 [email protected] http://www.co.mohave.az.us >>> John Holbrook <[email protected]> 03/20/2009 8:52 AM >>> Oops. Didn't send this to the list first time...sorry Kenneth. Not specifically a DSPAM thing but the best way I found to reduce spam is greylisting. We saw our overall email load drop by 90% as soon as we turned on greylisting. Went from approximately 20,000 emails a day to less than 2,000. http://greylisting.org/ ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Dspam-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspam-user !DSPAM:49c3bc00503392114292621! ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Dspam-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspam-user
