exchange 2007 server child domain user unable to open mailbox in OWA of mailbox in root RRS feed

  • Question

  • We have a root domain y.z and and child domain of x.y.z. 

    Exchange 2007 SP2 is installed in the root domain and seems to be working fine with users of both domains accessing their mailboxes.  However, we have an issue with users in our child domain (x.y.z) being unable to open colleagues mailboxes via OWA (the colleagues user accounts are in the child domain and the mailbox is in the root domain).

    Any ideas as to what we can do to ensure that they will be able to open the mailboxes?<o:p></o:p>

    Saturday, March 9, 2013 3:06 PM

All replies

  • Hi

    I found some ideas on this thread


    1. Under recipient config area in hub transport exchange management console,Right click, modify recipient scope, select entire forest !
    2. In order for OWA to work for your child domain users, make sure you run setup.com /preparedomain on your child domains.
    3. One additional, if the child domain is windows 2008 R2, you have to running "setup.com /pad" or "setup.com /PrepareAllDomains" in your exchange 2007 sp2 setup.com


    Zi Feng
    TechNet Community Support

    Monday, March 11, 2013 8:01 AM
  • Zi

    Thanks for the prompt reply.

    OWA works for the users in the child domain, they can all login fine and send and receive mails via OWA, the issue is when they attempt to open mailboxes of other child domain users.

    The /preparedomain must have been run as they can log into OWA.

    The DCs in both child and root are all running Windows 2003 SP2.


    Monday, March 11, 2013 11:31 AM
  • Hello Colin

    Thank you for your question.

    I am trying to involve someone familiar with this topic to further look at this issue.


    Zi Feng
    TechNet Community Support

    Tuesday, March 12, 2013 2:49 AM
  • Colin,


    What is the exact text message of the error when your user attempt to open mailboxes of other child domain users? You may please post a screenshot of the error here.



    Bruce R. Wang
    TechNet Community ESC Support

    • Edited by Bruce_R Tuesday, March 12, 2013 8:18 AM
    Tuesday, March 12, 2013 8:18 AM
  • Bruce

    The error we see is:

    The user has Full Mailbox Access rights assigned in the EMC.


    Tuesday, March 12, 2013 9:11 AM
  • Hi Colin,

    Could you test following?

    1. Is User1/Mailbox1 able to open Mailbox2 of User2? (Assuming Both the users and mailboxes are in Root Domain)

    2. Is User1 able to open Mailbox3 of User3? (Assuming User1/Mailbox1 is in Root and User 3 is in Child but User 3 Mailbox is in Root Domain)

    Please keep me posted with the results.


    Padamdeep Singh

    Monday, April 1, 2013 6:51 AM
  • Hi Colin,

    Any luck with above steps?

    Padamdeep Singh

    Monday, April 15, 2013 5:46 AM