Exchange 2010 Cross Forest Object Picker RRS feed

  • Question

  • My Exchange 2010 is in a dedicated resource forest. All 2010 servers are CAS/HUB/MB combo servers. The Exchange forest has several trusts with other user forests.

    Everything is working except when I try to link one of the mailboxes on 2010 to a user account in any of the users forests.

    Are there port requirements from the 2010 servers directly to the DC\GC in the trusted forest?

    Saturday, January 5, 2013 12:20 AM


  • Hi,

    If the issue only occurs in one mailbox, I don't think it is caused by network ports. Just for your reference, you may refer the following Microsoft article:


    For the issue you encounter, I'd suggest you change a new mailbox or create a new user account and then try again. Hope it is helpful.

    If the issue continues, please check the application event log and the system log for further research. Thanks.

    Fiona Liao
    TechNet Community Support

    Monday, January 7, 2013 4:51 AM