# Alternatives to Windows Mail and Calendar

The mail, calendar and people apps shipped with Windows 10 and 11. Support ended on 31 December 2024, after which they can no longer send or receive mail; Microsoft directs users to the new Outlook.

It is proprietary, free and available on Windows. None of its 11 checklist rows are verified yet.

Source: https://altcatalog.com/alternatives/windows-mail-and-calendar/
Category: Email clients

## Overview

- **Who it's for**: Windows 10/11 users who relied on the free, built-in Mail, Calendar, and People apps for basic email, scheduling, and contacts without installing a separate client.
- **What you get**: A lightweight, no-cost combination of email, calendar, and contact management preinstalled with Windows, supporting Microsoft accounts as well as Gmail, Yahoo!, iCloud, and other IMAP/POP providers. Microsoft ended support for these apps on December 31, 2024, and Windows 11 now ships with the new Outlook as the default mail app instead. Existing Mail, Calendar, and People installations still run but no longer receive updates, and Microsoft recommends migrating to new Outlook or Outlook.com for continued email and calendar functionality.
- **How it works**: Users added one or more email accounts within the apps to sync mail, calendar events, and contacts automatically; Microsoft now directs users to export their data and switch to the new Outlook for Windows app, which consolidates the same functionality under one interface.

## Profile

- **License**: Proprietary (verified 2026-07-12)
- **Pricing model**: Free (verified 2026-07-12)
- **Platforms**: Windows
- **Status**: discontinued (verified 2026-07-12)

## Ranked alternatives

| # | App | Alt Score | Licence | Platforms |
|---|-----|-----------|---------|-----------|
| 1 | [aerc](https://altcatalog.com/alternatives/aerc.md) | building | MIT | Linux, macOS |
| 2 | [Apple Mail](https://altcatalog.com/alternatives/apple-mail.md) | building | Proprietary | macOS, iOS |
| 3 | [Aqua Mail](https://altcatalog.com/alternatives/aqua-mail.md) | building | Proprietary | Android |
| 4 | [BlueMail](https://altcatalog.com/alternatives/bluemail.md) | building | Proprietary | Windows, macOS, Linux, iOS |
| 5 | [Canary Mail](https://altcatalog.com/alternatives/canary-mail.md) | building | Proprietary | Windows, macOS, iOS, Android |
| 6 | [eM Client](https://altcatalog.com/alternatives/em-client.md) | building | Proprietary | Windows, macOS, iOS, Android |
| 7 | [Evolution](https://altcatalog.com/alternatives/evolution.md) | building | LGPL-2.1 | Linux |
| 8 | [FairEmail](https://altcatalog.com/alternatives/fairemail.md) | building | GPL-3.0 | Android |
| 9 | [Geary](https://altcatalog.com/alternatives/geary.md) | building | LGPL-2.1-or-later | Linux |
| 10 | [K-9 Mail](https://altcatalog.com/alternatives/k-9-mail.md) | building | Apache-2.0 | Android |
| 11 | [Mailbird](https://altcatalog.com/alternatives/mailbird.md) | building | Proprietary | Windows, macOS |
| 12 | [Mailspring](https://altcatalog.com/alternatives/mailspring.md) | building | GPL-3.0 | Windows, macOS, Linux |
| 13 | [Mimestream](https://altcatalog.com/alternatives/mimestream.md) | building | Proprietary | macOS |
| 14 | [Missive](https://altcatalog.com/alternatives/missive.md) | building | Proprietary | Web, Windows, macOS, iOS |
| 15 | [NeoMutt](https://altcatalog.com/alternatives/neomutt.md) | building | GPL-2.0 | Linux, macOS |
| 16 | [Outlook](https://altcatalog.com/alternatives/outlook.md) | building | Proprietary | Windows, macOS, iOS, Android |
| 17 | [Postbox](https://altcatalog.com/alternatives/postbox.md) | building | Proprietary | macOS, Windows |
| 18 | [Shortwave](https://altcatalog.com/alternatives/shortwave.md) | building | Proprietary | Web, macOS, Windows, iOS |
| 19 | [Spark](https://altcatalog.com/alternatives/spark.md) | building | Proprietary | Windows, macOS, iOS, Android |
| 20 | [Superhuman](https://altcatalog.com/alternatives/superhuman.md) | building | Proprietary | Windows, macOS, iOS, Android |
| 21 | [The Bat!](https://altcatalog.com/alternatives/the-bat.md) | building | Proprietary | Windows |
| 22 | [Thunderbird](https://altcatalog.com/alternatives/thunderbird.md) | building | MPL-2.0 | Windows, macOS, Linux |

Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/

## Sources

Sources for Windows Mail and Calendar. Each alternative is sourced on its own page.

- **License**: Proprietary — <https://support.microsoft.com/en-us/outlook/windows-mail-calendar-and-people-are-becoming-new-outlook> (verified 2026-07-12)
  - Quote: “© Microsoft 2026”
- **Pricing model**: Free — <https://apps.microsoft.com/detail/9wzdncrfhvqm?hl=en-us&gl=US> (verified 2026-07-12)
  - Quote: “Mail and Calendar - Free download and install on Windows | Microsoft Store”
- **Platforms**: Windows — <https://apps.microsoft.com/detail/9wzdncrfhvqm?hl=en-us&gl=US> (verified 2026-07-12)
  - Quote: “Mail and Calendar - Free download and install on Windows | Microsoft Store”
- **Status**: discontinued — <https://support.microsoft.com/en-us/outlook/windows-mail-calendar-and-people-are-becoming-new-outlook> (verified 2026-07-12)
  - Quote: “Support for Windows Mail, Calendar, and People ended on December 31, 2024.”

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/