How do I empty my Deleted Items folder in MS Outlook?
To empty your MS Outlook deleted items folder:
Right click on your Deleted Items folder in Outlook. A pop up menu appears.
Select Empty Folder. A dialog box opens asking whether you are certain.
If you are unsure, select Cancel. Otherwise, click OK.
NOTE: Items deleted by mistake can be retrieved for at least 28 days after the Deleted Items folder is emptied by using Outlook 2010. Please see here.
Reviewed January 2015