Hi EE. I just managed to configure my lan with linux as a router. I have a simple firewall router connected to my internet link and my linux box connected to the router. my lan is then connected to the linux box on eth1. So Internet is working. However my mail server sits on one of the linux boxes. The router forwards data on port 25 and 110 to a pc on the lan, but since they are on different ip range - 10.0.0.1 for the router and 192.168.0.2 for the pc. How can I get mail to work?