I have configured my outlook to open additional mailboxes in OUtlook 2003 and working fine. But when i am adding the same mailboxes in Outlook 2007 with same permissions it is not opening and giving message “Cant open the folder. Check the permissions”. The same is opening with Outlook 2003 but not in 2007. Full mailbox permissions given for both the mailboxes for both the users in Exchange 2003. Please help in getting the solution for this issue.