We have an 1 exchange 2003 server that is one domain and we need to migrate it over to another domain. What and how is the best way to accomplish this? the current exchange server is set-up on one domain (Domain A) under the forest. And we need have another server setup on another domain (Domain B) in the forest but need to install exchange 2003 on it and migrate the all accounts from current server to the new server on (Domain B). What is the best method to do this?