Magic Router is support ONLY for Microsoft Platform. If you need to protect all your non Microsoft Platform Server, install Magic Router on Microsoft OS server (Gateway). Startup Magic Router and enable firewall and quota features, set correct listen port and forward to final destination server.
ie. listen port = 25, forward to ip = 192.168.1.1, to port = 25
ie. listen port = 110, forward to ip = 192.168.1.1, to port = 110
ie. listen port = 80, forward to ip = 192.168.1.2, to port = 80