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Exchange 2007 on multiple domains

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  • Exchange 2007 on multiple domains

    First of all, many thanks to those who will respond to my question....

    Here is the scenario:

    We have 4 domains -
    - RootDomain =all Windows 2003 DCs = no end user accounts here
    - Domain1 = all Windows 2003 DCs (approx 3000 users)
    - Domain2 = all Windows 2000 DCs (approx 2000 users)
    - Domain3 = all Windows 2000 DCs (approx 2000 users)

    The Forest functional level is Windows 2000.
    Each domain's functional level is Windows 2000 native

    We want to deploy Exchange 2007. Only Domain1 will have an Exchange 2007 server - all other users from other domains will use this server.

    From MS website, the requirement is to have at least one 2003 with SP1 DC in each domain - is this correct? Do we need to add a 2003 DC on Domain2 and Domain3 for this deployment eventhough only Domain1 will host an Exchange 2007 server for the entire forest?

    History: Domain2 and Domain3 were not upgraded to have 2003 DCs because the plan is to decommission these domains and move all users to Domain1. But this is work in progress and will not be completed soon due to other issues.

    Any answer/advise will be much appreciated. Thank you.

  • #2
    Re: Exchange 2007 on multiple domains

    If you are deploying Exchange to users in the domains with Windows 2000 DCs then you are going to have problems. The install will most likely fail.

    That is because you will need to prep each of the domains.

    Therefore you are going to have to install Windows 2003 GC/DCs in to each domain before you can deploy Exchange 2007.

    It isn't where Exchange is located that is the problem - it is where the users are.

    Simon Butler
    Exchange MVP

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    • #3
      Re: Exchange 2007 on multiple domains

      Thanks Simon.