How To Configure Outlook 2010 To Empty Deleted Items Folder On Exit
Deleted items in Microsoft Outlook  that are stored in “Deleted Items Folder” start to pile up and take space after a while.
In order to remove them permanently everytime Outlook is closed :
1. Open Outlook 2010 and go to File > Options.
2. Select “Advanced” tab and in the “Outlook start and exit” section, enable the tick mark next to “Empty Deleted...