Exchange 2010 system accounts are in root domain, Exchange is in child domain - no arbitration mailboxes exist RRS feed

  • Question

  • I have installed Exchange 2010 in our test environment and had problems getting the mailbox role to install - I think this is the root cause of the problems I'm having.  I did get it to install finally by uninstalling all Exchange roles and then reinstalling but I did not clean up AD after uninstalling.  Now, my database is dismounting at some point during the night and will not re-mount - the Information Store service stops and will not restart.  The only way I've gotten it to restart is to power down the server & bring it back up (a restart doesn't do it).

    Errors in the event log point Active Directory and to not having arbitration mailboxes set up.  When I ran setup /preparead initially, it was done from the Schema master which is in a different domain than Exchange.  Exchange is in a child domain.  The System Accounts (FederatedEmail, SystemMailbox, DiscoverySearch) are seen in ADUC for the root domain in the Users container however, they do not have mailboxes attached to them.

    I have attempted to enable the mailboxes from Exchange Management Shell (after setting my scope to EntireForest) and get this error: 

    [PS] C:\Windows\system32>enable-mailbox -Arbitration -Identity "FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042"
    This task does not support recipients of this type. The specified recipient root.domain/Users/FederatedEmail.4c1f4d8b-8179-
    4148-93bf-00a95fa1e042 is of type UserMailbox. Please make sure that this recipient matches the required recipient type
     for this task.

    I'm hoping that when I install this for real in my production environment that I don't have these same issues but I need to figure out how to get the security set up across the domains before I get to the production install date of 8/9.

    How can I get the arbitration mailboxes set up for these users?  Should I recreate the system account users in the child domain?

    Friday, July 29, 2011 2:17 PM


  • Hi,

    Please deleted the arbitration,discovery mailbox and FederatedEmail using ADSIEDIT by following the
    below steps:

    1)Open ADSIEDIT.msc,connect to the default naming contest
    2)navigate to the users container and in the right hand side,
    right click and delete
    the following arbitration and discovery mailbox respectively

    3)Run setup/preparead to recreate both the arbitration and discovery mailbox
    4)Enable both the arbitration and discovery mailbox by following the below step.

    i) Enable-Mailbox –Arbitration –Identity
    ii)Enable-Mailbox –Arbitration –Identity
    iii)Enable-Mailbox -discovery -identity
    iv)Enable-Mailbox -discovery -identity

    If the issue persists, please post the error log relating to Information service.

    • Marked as answer by Gen Lin Thursday, August 4, 2011 7:20 AM
    Tuesday, August 2, 2011 6:26 AM