Hi
I wonder if you can guide me in the right direction with a particular problem Im having.
Im moving mailboxes from a hosted exchange to Office 365 and at the same time i am migrating AD accounts from one forest to another.
The concern i have is once i have moved the mailbox to office 365 and the AD account to the new forest, how does one resync the Office 365 mailbox to the migrated account on the new domain.
Do specific attributes need to populated in AD in order for it to re-home? Is there a special attribute that Office 365 uses to sync? i read about an immutable identifier.
Would using the MS Dirsync tool once the mailboxes are in Office 365 with the users in the old domain, sync that up then migrate to the new forest?
Introduce a 2010 CAS server to establish a hybrid model to help facilitate this process?
Any help would be greatly appreciated.
Thanks