I'd think this would be a common question, but my google-fu has failed me. Here's my situation:
Given a forest with users with Exchange mailboxes, I need to migrate the users to a new forest and move their mailboxes to new Exchange servers in the new forest. My question is: Is there any way to NOT do both migrations at the same time? In other words, can I move their mailboxes the weekend before I do the user migration? Or vice-versa - move the mailboxes the weekend after the migration? All of the documentation I can find on using ADMT to migrate exchange enabled users talks about moving mailboxes coincident with moving the user. As part of a company spin-off, I have several locations with hundreds of users each where I need to migrate users to a new forest. I doubt I'll be able to get more than a weekend at each location to complete the user migration, so I'd prefer to do the mailbox migration done either before or after the user migration. I understand there will be GAL sync issues to address - I can handle that.
