Specifically, for those using the Outlook desktop app for Mac or the Outlook mobile app, 'logging out' in the traditional sense isn't really possible. And depending on the device, you may not be able to log out of Outlook without deleting or removing your account. Logging in is relatively straightforward, but once you're entrenched in Outlook's user interface, you might have trouble figuring out how to sign out. Before you can do anything in Microsoft Outlook, you'll need to know the ins and outs – that is, how to log in and log out of your email account.