We want to be able to add additional mailboxes to some Outlook clients but not give them FullAccess. We've tried assigning them ReadPermssion to the mailbox but Outlook cannot open the mailbox. What's the minimum permission required to add and view an additional mailbox?Orange County District Attorney

Receive-as access to the DB, MAPI access at the root of mailbox or full mailbox access thats it. Minimum permissions necessary to access mailbox data http://blogs.technet.com/b/exchange/archive/2006/01/25/418099.aspxJames Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Thanks for the answer. This answers my question.Orange County District Attorney