HI Iam using Outlook 2007 client with Exchaneg 2007 , Iam able to open additional Mailbox within the same mailbox Problem if i login to a new machine with my profile , I cannot see the additonal mailbox , Is there any Registry settings at the backend/frontend where the user can open their Outlook profile with additinol mailbox without reconfiguring additnal mailbox option. Thanks JC John cherian

IIRC this is a per profile setting in Exchange 2007, so no unless you use roaming profiles. If you want to upgrade to Exchange 2010 SP1 you might try this: http://www.stevieg.org/2010/08/auto-mapping-shared-mailboxes-in-exchange-2010-sp1-with-outlook-2010/

This only works for Exchange 2010 ! Iam using Exchange 2007. Thanks JcJohn cherian

That's correct. So no unless you use roaming profiles if upgrading the server is not an option.