www.untangle.com The basic setup is free. It does spam filtering, content filtering, malware protection... If you opt for the monthly subscription there are add-ons like AD integration and so on... It runs on a fairly small PC - depending on the amount of users.
Rick -----Original Message----- From: Roger Wright [mailto:rwri...@evatone.com] Sent: Wednesday, March 11, 2009 8:23 AM To: MS-Exchange Admin Issues Subject: RE: Filtering Spam How many users? Roger Wright Network Administrator Evatone, Inc. 727.572.7076 x388 _____ -----Original Message----- From: Daniel Hood [mailto:dsmh...@gmail.com] Sent: Tuesday, March 10, 2009 11:12 PM To: MS-Exchange Admin Issues Subject: Filtering Spam Hey, I'm looking for a good open-source/free product that we can use in conjuction with our exchange server to filter out spam. We did have mailwasher but due to the opensource version being crap and the enterprise version costing as much as putting an entire detriot high school through college, I'm looking for another free/open-source spam product that actually works. Ideas? Daniel ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~ ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~ ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~