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K-9 Mail Alternatives for Linux

K-9 Mail is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to K-9 Mail and 12 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to K-9 Mail are Mailspring, Evolution, Claws Mail and Delta Chat.

K-9 Mail alternatives are mainly Email Clients but may also be Calendar Apps or Group Chat Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of K-9 Mail.
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K-9 Mail iconK-9 Mail
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  • FreeOpen Source
  • Android
  • Android Tablet
  • F-Droid

K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address...

Learn more about K-9 Mail

  1. Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

    Screenshot
    Most users think Thunderbird is a great alternative to K-9 Mail.
  2. Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.

    Clean design with integrated search and swipe gestures


  3. Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.

    Mail
  4. Claws Mail is an email client (and news reader), based on GTK+, featuring

    Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability.
    The main window
  5. Delta Chat icon

    Delta Chat

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • FLATHUB
    • F-Droid

    Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.

    Screenshot


  6. BlueMail icon

    BlueMail

    • Free PersonalProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Apple Watch

    BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.

    Screenshot
    Some users think BlueMail is a great alternative to K-9 Mail, some don't.
  7. Betterbird icon

    Betterbird

    • FreeOpen Source
    • Windows
    • Linux

    Betterbird is a fine-tuned version of Mozilla Thunderbird, Thunderbird on steroids, if you will.

    No screenshots yet
  8. LucaMail icon

    LucaMail

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    LucaMail is an open source, cross-platform email client. LucaMail is developed to provide cross-platform alternative to Email Clients that are really exists. LucaMail focuses on modern technologies as well as maintaining a user-friendly UI.

    Screenshot
  9. TypeApp icon

    TypeApp

    • Free PersonalProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Android Wear
    • Kindle Fire

    TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts.

    Screenshot
  10. Kube icon

    Kube

    • FreeOpen Source
    • Mac
    • Linux

    Kube is a modern communication and collaboration client built with QtQuick on top of a high performance, low resource usage core. It provides online and offline access to all your mail, contacts, calendars, notes, todo's and more.

    Screenshot
Showing 10 of 12 alternatives