Configuring your mail server with antispam smtp proxy

This basically is a platform independent proxy where all of your mail is filtered through the proxy itself. The proxy uses multiple technologies to filter out the spam for a clean mail system. Think of it this way. If your mail was a river, then boats can move freely in and out of the river regardless. But if you set up a lock in the river, then you can manage the flow of boat traffic in the river and make sure that you check each of the boats coming in and out. Similarly, this is what ASSP does.
So install it and go at protecting your river of mail.
Howtoforge < ASSP