Jamie Pratt scribbled on Thursday, September 16, 2004 6:27 AM: > Hi, I've been looking at how to integrate SA 3 (or 2.64 if > not possible > for 3) with MS exchange and have been looking at this page: > > http://www.christopherlewis.com/ExchangeSpamAssassin.htm > > ... Seems doable, but now wondering if anyone out here has any > experience or feedback on the implementation of this in the > real world.. > gotchas/caveats/tips I'll take anything I can get, as it seems pretty > complex to install and I don't want to try it unless I'm > fairly sure I > can get it to work properly first, and of course I lack a > spare server > to test with right now... (big surprise) :-( > > Thanks! > jamie
Jamie, I looked at that a while back when I was looking for a cost-effective (read cheap) solution for spam and antivirus scanning for our Exchange server. I too was in the same boat not having a non-production server to test on. I decided it wasn't worth taking a chance and built up a Linux box and installed MailScanner, Spamassassin and ClamAV. Couldn't be happier. It catches 95+% of spam and has not let a virus through since it was put into place. I simply created a secondary MX DNS record for it and firewalled port 25 incoming to the Exchange box and allowed 25 to the Linux box and it just works! Sendmail receives email from the internet, MailScanner calls Spamassassin and ClamAV, hands it back to Sendmail to relay to the exchange box. If I need to take it off line (which I haven't had to do so far) all I have to do is allow port 25 to the Exchange box and there is no mail interruptions. We process 3-8k emails a day and I put this together on a surplus P233 box with 196MB of memory. From testing it looks like it could easily process 20-25k messages a day. It is very configurable and will do much more than the solution you're currently looking at. I know that didn't really address your question but thought I'd give you another option. At least this way you're not taking chances with your production box. I'm not by any means a Linux guru but found the install fairly easy and put the whole thing together in an afternoon. You could also email Chris and ask him directly. I've found open-source developers to be very approachable and generally helpful if asked nicely. HTH Ken Ken Goods Network Administrator AIA Insurance, Inc.
