
On Windows 11, Microsoft is finally ditching the legacy Mail and Calendar apps (originally introduced on Windows 10) with the new unified experience for emails and calendars. The new experience will eventually replace the desktop version of the Outlook app that's part of the Microsoft 365 (Office) apps.
The new experience is identical to the online version of Outlook but with an application wrapper specifically designed for the desktop with offline and multiple account support. Using this app, you can connect Outlook accounts, Hotmail, Live, and other services, such as Google Gmail, Yahoo, and iCloud, and you can even attach IMAP accounts.