In Outlook for Windows, Focused Inbox is available only for Office 365, Exchange, and Outlook.com accounts. Focused Inbox separates your inbox into two tabs—Focused and Other. Your most important email messages are on the Focused tab while the rest remain easily accessible—but out of the way—on the Other tab. Directions to setup Focused Inbox for Outlook for Windows, Outlook on the Web, Outlook.com, Outlook for MAC and Mail for Windows 10.