New dedicated server needs installation of dedicated, easily maintained, spam filter and firewall. This server will relay to a MS 2003 server running exchange behind our firewill appliance. Access via webmin or ssh. Looking for a pretty bullet proof system using the many blacklists and other techniques available. Installation and configuration will need to be documented in preparation for any future catastrophic server crashes. Email processing is low volume <5k/week. Server Specs - AMD 2400 512 MB 40 GB HD. Current sys admins only.