Microsoft Mail and Calendar Alternatives

Microsoft Mail and Calendar is described as 'Windows 10 has Mail and Calendar apps already built in' and is a Email Client in the office & productivity category. There are more than 50 alternatives to Microsoft Mail and Calendar for a variety of platforms, including Mac, Windows, Linux, iPhone and Android apps. The best Microsoft Mail and Calendar alternative is Thunderbird, which is both free and Open Source. Other great apps like Microsoft Mail and Calendar are Google Calendar, Betterbird, Microsoft Outlook and Evolution.

Microsoft Mail and Calendar iconMicrosoft Mail and Calendar
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Windows 10 has Mail and Calendar apps already built in.

More about Microsoft Mail and Calendar
More about Microsoft Mail and Calendar
Microsoft Mail and Calendar alternatives page was last updated Mar 5, 2025
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  1. FileOne icon

    FileOne

     10 likes
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    FileOne is an organizer that combines and integrates your notes, documents, contacts, email, photo's/images, calendar and agenda with multimedia.

    License model

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Start screen of Documents and Notes

    FileOne Features

    1.  Portable
    2.  Integrated Web Browser
    3.  Built-in media player
    4.  Tree view
    5.  Integrated Search
    6.  Built-in Note Taker
    7.  Built-in editor
    8.  AES Encryption
    9.  Non-cloud solution
    10.  Integrated Email Client

    FileOne VS Microsoft Mail and Calendar

     
  2. KOrganizer icon

    KOrganizer

     18 likes
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    It provides management of events and tasks, alarm notification, web export, network transparent handling of data, group scheduling, import and export of calendar files and more. It is able to work together with a wide variety of calendaring services, including NextCloud, Kolab...

    43 KOrganizer alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Linux
    • KDE Plasma
    KOrganizer screenshot 1

    KOrganizer Features

    1.  Scheduling
    2.  Personal Information Manager (PIM)

    KOrganizer VS Microsoft Mail and Calendar

     
  4. Pegasus Mail icon

    Pegasus Mail

     13 likes
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    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.

    20 Pegasus Mail alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • NZ flagNew Zealand

    Platforms

    • Windows
    Screenshot taken January, 2018. Fresh install.

    Properties

    1.  Lightweight

    Features

    1.  Support for Multiple Users
    2.  IMAP Support
    3.  POP3 Support

    Pegasus Mail VS Microsoft Mail and Calendar

     
  5. Ad
    Screenshot
    Mailbird icon
    Mailbird

    Streamline your email experience by managing multiple accounts, integrating apps like Slack and Google Calendar, and using AI-driven features like drafting and spam prevention. Customize your workspace with themes, notifications,...

    https://www.getmailbird.com
    Learn More
  6. Iceape-UXP icon

    Iceape-UXP

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    Historically, Iceape was a re-branding of SeaMonkey by the Debian project. However, Debian discontinued Iceape in December 2013 citing security concerns and lack of a maintainer.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • BR flagBrazil

    Platforms

    • Linux

    Iceape-UXP VS Microsoft Mail and Calendar

     
  7. Stainless icon

    Stainless

     3 likes
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    A Mac OS X-only multi-process web browser with candy-features such as parallel sessions, which allows you to handle different accounts for the same web service without interference.

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Mac
    Discontinued

    last update (on 7/25/2011) was almost two years after I had stopped active development (11/04/09). https://github.com/mesadynamics/stainless

    Stainless VS Microsoft Mail and Calendar

     
  8. USticker icon

    USticker

     2 likes
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    USticker is free of charge version of "MakerX" app. USticker is notebook app for your iPhone or iPad with set of tools for organizing.

    License model

    • Free • Proprietary

    Application types

    Platforms

    • iPhone
    • iPad
    USticker screenshot 1

    USticker Features

    1.  Notebook

    USticker VS Microsoft Mail and Calendar

     
  10. Columba icon

    Columba

     5 likes
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    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    Columba screenshot 1
    Discontinued

    The project is no longer developed. Last version, 1.4, released in March 2007, can be still downloaded from SourceForge.

    Columba VS Microsoft Mail and Calendar

     
  11. Taskbox - Mail icon

    Taskbox - Mail

     6 likes
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    Your inbox is already a task list - make it a great one. Taskbox allows you to manage your tasks and todos where they already are -- your inbox -- without forwarding or cutting and pasting them to another app.

    License model

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • iPhone
    Taskbox - Mail screenshot 1
    Taskbox - Mail screenshot 2
    Taskbox - Mail screenshot 3

    Taskbox - Mail VS Microsoft Mail and Calendar

     

  12. PreFox

     2 likes
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    PreFox is an early proof-of-concept web browser for webOS based on the the same source code as Mozilla Firefox for Mobile.

    License model

    • Free • Open Source

    Application type

    Platforms

    • HP webOS
    PreFox screenshot 1
    Discontinued

    Development was discontinued. PreFox runs and can be used to browse the web but is not truly usable. The source code is available to get the project started again.

    PreFox Features

    1.  Extensible by Plugins/Extensions
    2.  Firefox-based Browsers
    3.  Tabbed browsing

    PreFox VS Microsoft Mail and Calendar

     
  13. SolMail icon

    SolMail

     1 like
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    SolMail is a powerful e-mail client that helps you to manage all of your e-mail accounts & messages in one app!

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • KR flagSouth Korea

    Platforms

    • Android
    • Android Tablet
    SolMail screenshot 1
    Discontinued

    Removed from google play and the developers never go it up

    Properties

    1.  Customizable

    Features

    1.  Multiple Account support
    2.  Unified inbox
    3.  Stickers
    4.  Tablet support

    SolMail VS Microsoft Mail and Calendar

     
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