On Nov 3, 2005, at 6:46 PM, Claudio Castro wrote:

> So Rober, after I create the 1:1 nat mapping for example..2.0.0.2- 
> >10.1.1.2, wich rules do I have to create in the firewall in order  
> to the mail server get and send traffic to internet?
> e.g. WAN interface of m0n0: 2.0.0.1

Route the appropriate ports to the LAN address of your mailserver.

25 = SMTP
110 = POP
143 = IMAP

and so on, depending on your setup.