On Wed, 26 Nov 2003, Brian Fahrlander wrote:
Options:
A lot of people have a mahine inside the NAT network to be the
mailer. Not too much tougher- the firewall will have to pass port 25
traffic to that machine, that machine will have to have a name/ip that
meshes with the local network, not the net, and you'll have to turn on
the 'masquerading' lines (there's 2-3 of'em) and THEN you're set.
If you are inside a dynamic DNS NAT isolated universe make sure that
outgoing mail has a From:/Reply-To: line that works the way you
expect it to for all your users.