Unless I misunderstood your question, yes, this is possible. We are doing something similar now with a Win7 upgrade project. We are moving their mailboxes first (we're currently in this phase), and will then be setting up the users on the new forest with their Win7 computers after we've migrated their file server resources over.
-Aakash Shah From: [email protected] [mailto:[email protected]] On Behalf Of Ken Cornetet Sent: Friday, February 21, 2014 11:15 AM To: [email protected] Subject: [NTSysADM] ADMT & Exchange 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.
