I think there're some permissions that aren't correct. the RUS seems to be
setup properly. When I try to open Child Domain users' accounts from the
Root domain in ADUC I get this: "The operation failed. ID no: 80004005
Microsoft Active Directory - Exchange Extension." Once I click ok the
users' properties come up but without any Exchange tabs......But when I
remote to the Child Domain domain controller as the same user that just got
the error (so, Admin of root domain on child) I get all the properties
including the Exchange tabs.... Any Ideas?