Spamassassin combined with RBL's and greylisting . if you implement greylisting you'll want to whitelist some systems (like Amazon EWS for example where this list originates from)
From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown Sent: Wednesday, April 1, 2015 5:04 PM To: af@afmug.com Subject: Re: [AFMUG] open source email spam filter gmail... From: Tim Reichhart <mailto:t...@nwohiobb.com> Sent: Wednesday, April 01, 2015 2:53 PM To: af@afmug.com <mailto:af@afmug.com> Subject: [AFMUG] open source email spam filter Hey Guys Who do you guys use for spam filter like barracuda but in open source for your email server? Tim
