This article providers step by step instruction on how to restore individual mail items back to user mailbox on Exchange 2010
Scenario: user deleted folder in his mailbox
Let's use for our example following scenario:
User Billy has accidentally deleted his IMPORTANT folder, and by the time he discovered that folder is missing, retention period for keeping deleted items in Exchange mailbox database is gone.
Here is screenshot of his original folder
In this scenario, we deleted "IMPORTANT" folder and purge "Deleted Items"