Thunderbird Alternatives

Thunderbird is described as 'Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc' and is a leading Email Client in the office & productivity category. There are more than 50 alternatives to Thunderbird for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best Thunderbird alternative is K-9 Mail, which is both free and Open Source. Other great apps like Thunderbird are Claws Mail, Evolution, Betterbird and SeaMonkey.

filter to find the best alternatives

Thunderbird alternatives are mainly Email Clients, but if you're looking for Calendar Apps or Contact Managers you can filter on that. Other popular filters include Linux, Open Source, iPhone, Free, Windows + Open Source, Android and Kindle Fire. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Thunderbird.
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Alternatives list

  1. FileOne icon
     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.

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  2. SolMail icon
     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!

    Cost / License

    • Free
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Android
    • Android Tablet
     
  3. meli icon
     1 like
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    Experimental terminal mail client aiming for configurability and extensibility with sane defaults.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
     
  4. Emilio icon
     1 like
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    Emilio is an AI-powered email manager that automates tasks to save users time. The key functionalities include sorting prioritized emails, summarizing messages and drafting emails with the user's tone.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  5. Ymail2 icon
     2 likes
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    yMail2 is a standalone email client for Windows (and Linux), available for free since 2003. Now with SSL support included so you can use it with Gmail and Hotmail POP3 and SMTP accounts.

    Cost / License

    • Free
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux
     
  6. Copy a direct link to this comment to your clipboard

    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.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
     
  7. Simple Email icon
     2 likes
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    An open-source email app for Android delivering privacy with a user-friendly minimalist design. It supports multiple accounts, a unified inbox, conversation view, and encryption. Offers two-way sync, offline storage, minimal data use, and battery efficiency. Export settings for easy setup.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Android
    • F-Droid
     
  8. GyazMail icon
     3 likes
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    GyazMail is a email client software for Mac OS X, based on Cocoa framework, simple, easy-to-use with many features.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
     
  9. Xylo AI icon
     1 like
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    Experience seamless communication with Xylo AI email assistant, the ultimate tool powered by cutting-edge Generative AI and Social Psychology.

    Cost / License

    • Subscription
    • Proprietary

    Application type

    Platforms

    • Online
    • Microsoft Outlook
    • Windows
    • Software as a Service (SaaS)
     
  10. Supamail icon
     1 like
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    Supamail AI turns hundreds of emails in last 24 hrs into clear summaries, smart categories, and easy replies so you never feel overloaded again.

    Cost / License

    • Subscription
    • Proprietary

    Application type

    Platforms

    • iPhone
     
  11. Copy a direct link to this comment to your clipboard

    Email client and email notifier in one. Allows you to send, receive, and manage e-mails, get notifications of incoming email messages from your buddies, coworkers or family members online. Contains free email sender interface ready to cooperate with other software via XML, CSV...

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
     
  12. PREDIMAIL icon
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    Sort, reply, and organize your inbox using a smart knowledge base for accurate, personalized answers. Save time and boost productivity with secure, automated email management.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
     
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