1. On the left side, click on SENT ITEMS
    2. To delete one item at a time, highlight the item you wish to delete by clicking on it one time, hit the DELETE key on your keyboard.
    3. To delete all items at once, click anywhere in the section to the right where your sent items are listed, hold down the CTRL key and hit the “A” key, this will highlight all items in the sent item section, hit the delete key.
    4. Another shortcut for highlighting all items at once is to click on the top line of the sent items, scroll to the bottom, hold down the SHIFT key, and click on the last line