The old Windows Mail, Calendar, and People apps are about to go six feet under. Microsoft has acknowledged that the apps will stop working in a few weeks.
The clock is ticking for the old Windows Mail, Calendar, and People apps. Microsoft recently updated the official documentation to clarify that with the end of support, the apps will stop working altogether on December 31, 2024. In other words, even if you manage to keep the new Outlook app away from your computer, the old Mail app will lose its ability to send and receive mail in less than two months.
Here is what Microsoft says in the now-updated support document:
Support for Windows Mail, Calendar, and People will end on December 31, 2024.