Wino Mail
Wino Mail is a free, open-source email and calendar app for Windows. Built-in Mail & Calendars app clone for Windows. It has 1,635 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at bkaankose/Wino-Mail.
github.com/bkaankose/Wino-Mail (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About Wino Mail
I'm a big fan of Windows Mail & Calendars due to its simplicity. Personally, I find it more intuitive for daily use cases compared to Outlook desktop and the new WebView2 powered Outlook version. Seeing Microsoft deprecating it dragged me into starting to work on Wino a couple of years ago. Wino's main motivation is to bring all the existing functionality from Mail & Calendars over time without changing the user experience that millions have loved since the Windows 8 days in Mail & Calendars.
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Is Wino Mail free and open source?
Yes. Wino Mail's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Wino Mail?
Download the installer for Windows from its GitHub Releases page (latest: v2.2.7.0) or the project website.
Is Wino Mail still maintained?
The repository's most recent commit was on Oct 28, 2026. appsgit only lists apps whose repository had a commit in the last six months.