Out the door, dinosaur: Microsoft is ending support for its Windows Mail, Calendar and People apps. Starting Dec. 31, 2024, you’ll lose the ability to send and receive emails through Mail. Microsoft wants everyone on its new Outlook app. Here’s the official exporting guide for your Mail emails and contacts. FYI: The Outlook app is slow, so you might want to switch to a different email client altogether. Thunderbird is a good free option.