If you're part of a large organization with IT support, someone probably deletes the contents of that folder regularly, and without your knowledge. The Deleted Items folder stores emails that you won't refer to again. 1: Use the Deleted Items folder as storage Note: This article is also available in the free PDF 30 things you should never do in Microsoft Office. Some will apply to the browser edition and some won't. I'm using Outlook 2016 (desktop), but you can apply these items to earlier versions. Microsoft 365: A cheat sheet (free PDF).
