[ExchangeList] Communication between exchange and non-exchange mail server

  • From: "Jeffrey Robillard" <jrobill@xxxxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 30 Jun 2006 08:54:21 -0400

-------------------------------------------------------I have an IIS SMTP 
server setup on a machine as a listserv that can
email my exchange server perfectly.  However, I am unable from exchange
send any email back to the IIS SMTP Listserv.

I know the ListServ can receive mail.    

The issue, I am pretty sure, is that they are both behind a firewall
with NAT.  I believe the exchange server is resolving the ip address for
the listserv as the external ip instead of the internal ip.  

Is there a way within exchange 2k that you can tell it ... All mail
destined for domain @list.blah.com forward to internal ip

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