Using Microsoft Exchange 2010 we are doing a Legal Discovery using the Multi-Mailbox Search feature. When I log onto the ECP using a user that is in the group to be able to run dicovery searches I see the feature. I then setup a basic new search. When I click on Save I get the error "The user does not have an Exchange Mailbox." It gives us this error with whatever we do a search on. All mailboxes or a single mailbox. Any options I choose gives us that. If I try to do it via powershell I get the same result. This feature has never functioned since installing Exchange 2010. Thanks in advance! Chris

This should help you. How to Recreate the System Mailboxes in Exchange 2010 http://www.mikepfeiffer.net/2010/04/how-to-recreate-the-system-mailboxes-in-exchange-2010/ OR http://msundis.wordpress.com/2010/08/17/recreate-and-enabled-missing-arbitration-user-accounts-and-mailboxes/ Martina Miskovic

Hi Chris, Please ensure the user who is a member of Discovery management role has a mailbox on the Exchange server. If so please try to give the user full permissions on Discovery search mailbox and try again. Hope it helps.Best Regards!