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Subject: intranet setup with postfix
From: stephane parenton (stephane.parentonprisme.fr)
Date: Tue Oct 31 2000 - 08:32:27 CST

high everyone....

I have a linux box running postfix in a DMZ (computer A), and retrieving
and sending mail from and to the outside world. But I want 2 new linux
boxes to be the first mail-box... So i've set up 2 computers (B & C)
with dns, and postfixs.... locally, it works fine, but I don't relay to
the outside world, and the outside world doesn't know where the users
are.... (for A still owns the users...).

I want to establish a relay... the point is... no user must be on A
anymore. A must send mail to B. if B doesn't own the user, then B must
send to C... this should be cool.... but when sending from inside, how
can I do to say :
    If B sends, check if C owns the user
    If C sends, check if B owns the user
    else of both, send outside ?

Is everything only a transport configuration, or should i change
anything else on my linux boxes ?

by the way, A and B are at the same location, but A is outside, and B is
inside the network.

where can I find sample files with this kind of configuration ?

Regards
Stephane Parenton
Prisme.