1. Find user in Exchange


2. On the Mailbox tab, click Manage mailbox policies under Retention policy.


3. Make sure the Default MRM Policy is selected under Retention Policy


4. Give yourself access to mailbox temporarily.


5. Open mailbox in owa.


6. Right click Folders, choose assign policy, select the appropriate option to make sure items of a certain age are archived (this will trickle down to the the subfolders).


7. Remove access to the mailbox.


8. From EW-ITMANAGEMENT - open PowerShell with admin rights and run the following command: Start-ManagedFolderAssistant -Identity "Curt Peitzman"

*Substitute Curt's name for the user that you are needing to do this for!


9. Monitor the mailbox size inside Exchange Admin over the next couple hours to make sure the usage goes down.