I need some rudimentary Exchange advice:-
Supposing I had one MX record which accepted all emails for the organization. and I had an exchange server in New York, DC and Miami. All mail is accepted and processed by the New York server. How does exchange process an email that is bound for the DC or Miami office? a) how does it know that a users mailbox is located on say the DC server, and b) what is the mechanism for routing that message from the incoming NY server and then passing it on to either the DC or Miami server?