Hi. I have a client that is running Exchange 2003 SP2 on Windows Server 2003 SP2 and has the following problem. Let me explain the scenario.The users are using a mix of Outlook 2003 and Outlook 2007 and both are running the latest service packs.Users can log in to their own mailboxes without any problems.When you attempt to add another user mailbox from the "Open these additional mailboxes" option youget an error that the name can not be resolved. However if I log in to the Windows Workstation as the domain admin account I can resolve names succesfully. So I know that it points to some sort of permission problem. I followed the steps outlined in knowledge base article 322832 but those pemissions were already set. Anyone have an idea what can be causing this problem? Additionaly if I the open other users folder method I can open the folders that i have granted users permissions for. I don't know why that would resolve a name and not the other method. Any suggestions would be greatly appreciated.

It sounds like the problem is related to access to the GC, when you try to add a Mailbox it tries to resolve against the GC. Have you changed the defaultpermissions so that only admin's can do ldap query's?ThanksWillWill Shepherd - MCSE/MCITP/MCTS (Windows 2008,Exchange 2007,OCS 2007)

Will,Thanks for the reply. I used Softerra LDAP Browser 2.6 to test LDAP connection as one of the user accounts and I was able to succesfully authenticate and browseActive Directoryusers.Should I test itsome other way?

Then I would go back thru the permissions in Exchange to make sure someone didn't remove the inherited permissions on something. I would use ADSIEdit to check the permissions on all the Exchange objects. The only other related article I found mentioned an issue with the clientusing a language that was not instaled on the GC but that doesn't sound like the issue here since an Admin account will work.ThanksWillWill Shepherd - MCSE/MCITP/MCTS (Windows 2008,Exchange 2007,OCS 2007)

Any permissions that I should pay particular attention to?