Windows Mail and Calendar to Stop working after 31 December: Microsoft Washington, 10 Nov (ONA) —- Microsoft announced that Windows Mail, Calendar, and People apps will no longer be supported after 31 December 2024. "Support for Windows Mail, Calendar, and People will end on December 31, 2024," the Microsoft Support website explains. "We're currently in the process of moving existing users to the new Outlook for Windows. After December 31, 2024, users ...