I have several room mailboxes on an Exchange 2010 SP1 server. All are configured to have the resource booking attendant enabled. Some of them additionally allow out of policy requests. These have a delegate set. The delegate also receives the forwards of out of policy requests. However, it is not possible to approve them: Outlook 2010 says that it cannot open the "Calendar" folder of the room and OWA does not open the request at all, because the delegate user does not have the appropriate permissions. What is the proper way to configure a resource delegate? I thought it would suffice to add it in the "Specify delegates of this mailbox" list of EMC. What else do I have to configure in order to make it work?

Hi, have you solved it ? I got a similiar issue, just created new rooms with powershell, and added room delegates to a mailenabled security group, and it doesn´t work to approve requests. Any tips? Thanks, Magnus Magnus