Microsoft Office Outlook Alternatives for Windows

    There are many alternatives to Microsoft Office Outlook for Windows if you are looking for a replacement. The best Windows alternative is Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Office Outlook and loads of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Microsoft Office Outlook are Mailbird (Paid), eM Client (Freemium), Mailspring (Freemium, Open Source) and Microsoft Mail and Calendar (Free).

    This page was last updated Oct 27, 2021

    1. Pegasus Mail is a free, standards-based electronic mail client suitable for use by single or multiple users on single computers or on local area networks.
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    2. The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Facebook and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays.
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    3. Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.
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    4. This program helps you organizing your dates and tasks and reminds you of upcoming events.
    5. The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud, yet having them locally accessible when on the road.

      Discontinued

      From download page: "The Zimbra Desktop is no longer supported. It will reach the end of Technical Guidance October 1, 2019.".

      See https://www.zimbra.com/downloads/zimbra-desktop/

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    6. Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.

      Discontinued

      The project is no longer developed. Last version, 4.0.8, released in February 2007, can be still downloaded from the official website.

    7. BORG is a combination calendar and task tracking system. The calendar supports all sorts of appointments and also a simple todo list. The calendar functionality is similar to that of other PIMs, such as Microsoft Outlook, Mozilla Calendar, Palm Desktop, Yahoo Calendar, etc...
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    8. Nylas Mail Lives is a fork of Nylas Mail that fixes many longstanding issues, improves the client experience, and is committed to publish new releases.

      Discontinued

      On its github page it states it is archived and is no longer maintained.

    9. The missing native desktop client for Gmail on Windows 10.
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      • FreeOpen Source
      • Windows
      • Windows Mobile
      nPOPuk is an ultra-small, but comprehensive, e-mail client that runs on a wide range of Windows-based operating systems

      Discontinued

      Not updated since 2017.

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