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Migrate Exchange 20003 to Exchange 2010 SP2 multi-tenant (Resource Forest)

    Question

  • We are planning to migrate our email system from Exchange 2003 SP2 to Exchange 2010 Sp2 Multi-tenant

    Now:

    ForestA: Exchange 2003 SP2

                 AD for ForestA user account

    Future:

    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

    Winnie

    Tuesday, March 13, 2012 3:25 AM