Rather than complicating the setup with antispam software & filtering, I'd highly recommend implementing greylisting, it will delay emails coming through from unknown sources but you can use a whitelist containing known/trusted hosts to bypass the greylisting.
I highly recommend spamd (not the spamassassin daemon) which is included with openbsd & is available from ports for freebsd (not sure about netbsd) or postgrey if you're running postfix Interview with bob beck (the developer of spamd) http://tinyurl.com/y7jj7b Postgrey http://isg.ee.ethz.ch/tools/postgrey/ Sevan / Venture37 -- "The truth, the half-truth, and nothing like the truth." - Mark Brandon Read _______________________________________________ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: [EMAIL PROTECTED] Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
