Support for the Windows Mail app will officially end on December 31. Microsoft encourages users to switch to the new Outlook app, as the Mail app will lose its email functionalities after support ends, making it incapable of sending or receiving messages. Users can temporarily switch back to the UWP version of the Mail app, but it will only serve as a non-functional interface. Microsoft recommends exporting local emails, calendar events, and contacts from Windows Mail to the new Outlook before support concludes.