I have 2 departmental email servers in different cities (Amarillo and
Dallas). Each has its own public IP address, domain name, and MX record.  I
want the email destined for the Dallas server to first come to Amarillo,
then have the Amarillo firewall forward the Dallas traffic to the Dallas
email server.  Our goal is to run the Dallas email thru our rather
expensive email scrubber, with no changes to our IP addresses or domain
names.

I think that I would need to:
-- change the MX record for the Dallas email to point to Amarillo;
-- set up IP forwarding rules on the Amarillo firewall to send the Dallas
traffic to the Dallas IP address

My question is: since I would change the Dallas MX record to point to
Amarillo, would the Dallas email be stuck in some sort of loop?

Tom Hightower
Solutions, Inc
http://www.simas.com





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