We are planning to migrate our email system from Exchange 2003 SP2 to Exchange 2010 Sp2 Multi-tenant
ForestA: Exchange 2003 SP2
AD for ForestA user account
ForestA: AD for ForestA user account
ForestB: Mailbox for ForestA users
Exchange 2010 SP2 multi-tenant
Hence the user accounts will still be in ForestA while the mailboxes for users will be hosted in ForestB.
Are we able to setup Exchange 2010 SP2 multi-tenant as email resource forest?
Do we follow the same steps for cross-forest mailbox migration (e.g. use
Prepare-MoveRequest.ps1 script first then ADMT) or is it different for move mailbox in this case?
How would distribution lists, public folder and free/busy information be handled? Do we need to use third party tools to sync between two forests?
It would be much appreciated if someone can provide some high level steps that required to achive the migration.
Thanks a lot
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