Need a solution for preventing my users from being able to move or delete their "Inbox\Archive No Delete" folder. This is a subfolder of the Inbox which is created by a third party application (Enterprise Vault) and has a different retention policy applied to it. My users are accidentally moving their folders and messages are being lost. Any ideas?
I answered a similar question here. Exchange: give access to a mailbox, but disallow moving/deleting folders
You can download ExFolders from here http://gallery.technet.microsoft.com/office/Exchange-2010-SP1-ExFolders-e6bfd405
and set Folder level permissions
Please try it out on a test mailbox by changing delete and Folder owner permissions on "Inbox\Archive No Delete"