We have two Exchange mail servers. Athens and Paris. Each one resides on a different subnet in a different location.
Paris is handling one domain: cat.com Athens is handling many domains, including dog.com
Is it possible for user Joe@cat.com, whose mailbox is obviously residing in Paris, to switch his mail address to Joe@dog.com, while keeping his Joe@cat.com address too? The "reply" address should be Joe@dog.com though.
I am thinking about migrating his mailbox from Paris to Athens, giving him the Joe@dog.com address in the process. Then creating a "remote email" (I cannot remember the proper term) in Paris for joe@dog.com, and a distribution group which will be sending emails from Joe@cat.com to Joe@dog.com.
Is there a better way to do this?
(Note: Paris is using Exchange 2003 and Athens is using Exchange 2010)