Check out this:
http://www.dataenter.co.at
Product calls XWall - nice mail relay server for Exchange (and price 300USD)
You can download full function trial version (30 days) and play with it.
Just forward all Incoming mail to this Soft and from Echnage use it as smart
host.
Hope this help
Alex Kvasnytskyy
LAN Admin
Digital Security Controls

-----Original Message-----
From: Stacy Williams [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 16, 2001 12:43
To: '[EMAIL PROTECTED]'
Subject: SMTP Gateway for Microsoft - Relaying Purposes


I think the problem that I'm having may be a configuration issue, but I'm
hoping that 
someone here can tell me exactly.  Here's my situation:

We have a DMZ 172.16.x.x address that has a NAT translation to the public
Internet,
using one network card to access both public and private resources.  I'm
having trouble 
with authenticating to a Domain in a 192.168.x.x address.  The Domain
Controller is also
configured with a NAT translation of 172.16.x.x address.  We are basically
attempting to 
place a SMTP gateway server to relay inbound and outbound messages to our
internal 
Exchange 2000 Server.

Does anyone have any suggestions on either Best Practices or examples of
implementing
a Smart Host / Gateway / SMTP Gateway for an Exchange Server 2000
environment.
Seeking suggestions on the systems aspect, as well as the networking aspect.


Thanks,

> Stacy M. Williams
> 
> 
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