Spam Filter?
 

I need a good spam filter that will work with Communigate Pro mail server. Can anyone recommend one?

Thanks

Soz, I can't offer one, but didn't CG Pro have 'em built in?

How does a Spam Filter work?

Gotta jump in cuz this thread ain't about security and it's digressing further. If you would ask something along the line of "how do I kill attachments called readme.exe" (add this to your procmailrc:
:0 B
* filename=readme\.exe
/dev/null
) I would be happy, but right now this is more about networked daemon related configs, not about security issues.

How does a Spam Filter work?
Try "man procmail", it should give you some idea's, plus there's a myriad of anti-spam or UCE resources on the net.

As has been mentioned, this is off-topic... Nonetheless, check out www.spamassassin.org It can be called from procmail so if your CG Pro can work with procmail you should be good to go.

Spam Assassin has cut down perhaps 85% of my 100+ spam emails a day. It's great...