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Exchange 2003 to 2007 Cross forest migration RRS feed

  • Question

  • Greetings I have the following scenario

    Forest A containing Active Directory Domain & Exchange 2003 Front End and Back End
    Forest B Containing Active Directory Domain and Exchange server 2007 "2 Hub/CAS NLB, 2 MBX CCR and 2 Edge servers.
    a trust relation ship has been created between the two forests
    forest A and forest B containing the Same users "the administrator created the same users in both forests so he created the users twice.
    users logon to Domain B to access the Bank application and uses Domain A only for mail accessing so Exchange in forest B is useless. but the customer need to migrate mailboxes to Forest B and demote Forest A.
    so do i have to gradually user by user in Forest B and then use ADMT to migrate the deleted user from Forest A to Forest B then use ILM to create this contact on the other Forest.
    please provide me with your advice

    Sunday, May 3, 2009 4:36 PM