How to Empty Trash in Outlook
At any time, you can empty the trash folder in Outlook manually. Right-click the Deleted Items folder or the Trash folder and choose Empty Folder. Configure an advanced setting if you want the Outlook application to empty the Deleted Items or Trash folder automatically every time you exit the app. When you close the Outlook window, a message will appear asking, Do you want to permanently delete everything in the “Deleted Items” (or “Trash”) folder for all accounts? If you wish to close the program and empty the trash folder, select Yes. If you have second thoughts about emptying the Deleted Items folder, select No. Outlook will still close, but the next time you start it, the Deleted Items folder will still contain the items that were there when you closed the program.
Empty the Trash in Outlook Online
The Outlook.com Deleted Items folder cannot be emptied automatically. You’ll need to empty the trash manually.
Empty the Trash Using Outlook for Mac
In Outlook for Mac, manually empty the trash folder by pressing and holding down the Control key, choosing the Trash folder and selecting Empty Folder.
