Thunderbird Alternatives for Linux

There are many alternatives to Thunderbird for Linux if you are looking for a replacement. The best Linux alternative is Claws Mail, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Thunderbird and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Thunderbird are Evolution, SeaMonkey, Geary and Betterbird.

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Thunderbird alternatives are mainly Email Clients but may also be Calendar Apps or RSS Readers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Thunderbird.
Thunderbird iconThunderbird
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Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

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Thunderbird alternatives page was last updated Nov 4, 2024
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  1. Sylpheed icon
    Sylpheed icon

    Sylpheed

     62 likes
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    Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).

    45 Sylpheed alternatives
    Main screen

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    Composition window
    Account preferences dialog
    +3
    Filter rule preferences dialog

    Sylpheed Features

    1.  Lightweight
    2.  Portable
    3.  Gtk
    4.  POP3 Support
    5.  IMAP Support
    Sylpheed iconThunderbird Icon

    Sylpheed VS Thunderbird

    Is Sylpheed a good alternative to Thunderbird?
     
    Comments about Sylpheed as an Alternative to Thunderbird
     
    Guest

    It doesn't encrypt password storage and doesn't have Master Password function

    Negative comment •Apr 6, 2019
    3
    Thunderbird Icon
    Sylpheed icon

    • Most users think Sylpheed is a great Thunderbird alternative.

    • Sylpheed is Free and Open SourceThunderbird is also Free and Open Source
    • Sylpheed is LightweightThunderbird is not according to our users
  2. Delta Chat icon
    Delta Chat icon

    Delta Chat

     48 likes
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    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.

    75 Delta Chat alternatives
    Delta Chat screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
    • Flathub
    • F-Droid
    Delta Chat screenshot 1
    Delta Chat screenshot 2
    +1
    Delta Chat screenshot 3

    Top Delta Chat Features

    1.  Decentralized
    2.  Encrypted Email
    3.  IMAP Support
    4.  Multiple languages
    5.  Dark Mode
    6.  Privacy focused
    7.  End-to-End Encryption
    8.  Ad-free
    9.  Unified inbox
    10.  Self Destructing Messages
    11.  Multiple Account support
    12.  Electron based
    Delta Chat iconThunderbird Icon

    Delta Chat VS Thunderbird

    Is Delta Chat a good alternative to Thunderbird?
     
    Comments about Delta Chat as an Alternative to Thunderbird
     
       
    BadTek

    More like an IM, not a full-featured email client.

    Top negative comment •Nov 27, 2021
    4
    Guest

    Delta chat is not an email client

    Negative comment •Nov 3, 2024
    0
    whitehotaru

    Delta Chat uses email, but is basically a short message application. Signal and Delta chat are similar for example.

    Negative comment •Oct 16, 2024
    0
    Show more comments
    3 of 6 comments
    Thunderbird Icon
    Delta Chat icon

    • This alternative is disputed. Delta Chat is a legitimate Thunderbird alternative, but it might have issues that some users think are important.

    • Delta Chat is Free and Open SourceThunderbird is also Free and Open Source
    • Delta Chat is Decentralized and Privacy focusedThunderbird is not according to our users
  4. Mailpile icon
    Mailpile icon

    Mailpile

     118 likes
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    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.

    59 Mailpile alternatives
    Mailpile screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • OpenPGP
    Mailpile screenshot 1

    Mailpile Features

    1.  OpenPGP
    2.  Web-Based
    3.  Encrypted Email
    4.  IMAP Support
    5.  POP3 Support
    Mailpile iconThunderbird Icon

    Mailpile VS Thunderbird

    Is Mailpile a good alternative to Thunderbird?
     

    • Mailpile is the most popular Self-Hosted alternative to Thunderbird.

    • Mailpile is Free and Open SourceThunderbird is also Free and Open Source
  5. Kontact - KMail icon
    Kontact - KMail icon

    Kontact - KMail

     48 likes
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    KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts, notes, to-do lists, news, and email.

    56 Kontact - KMail alternatives
    Kontact - KMail screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Linux
    • BSD

    Kontact - KMail Features

    1.  Email Organizer
    2.  Spam Filter
    3.  Privacy focused
    4.  Multiple Account support
    5.  Ad-free
    6.  Works Offline
    7.  Tray Icon
    Kontact - KMail iconThunderbird Icon

    Kontact - KMail VS Thunderbird

    Is Kontact - KMail a good alternative to Thunderbird?
     
  6. BlueMail icon
    BlueMail icon

    BlueMail

     30 likes
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    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.

    30 BlueMail alternatives
    BlueMail screenshot 1
    BlueMail screenshot 2
    +2
    BlueMail screenshot 3

    License model

    • Free Personal • Proprietary

    Application type

    Platforms

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

    BlueMail Features

    1.  Unified inbox
    2.  IMAP Support
    3.  Ad-free
    4.  GDPR Compliant
    5.  Lightweight
    6.  Multiple Account support
    7.  Calendar Integration
    8.  POP3 Support
    BlueMail iconThunderbird Icon

    BlueMail VS Thunderbird

    Is BlueMail a good alternative to Thunderbird?
     
    Comments about BlueMail as an Alternative to Thunderbird
     
    Guest

    bluemail pushes all your mail into their clud making it insecure

    Negative comment •Oct 30, 2019
    25
    Guest

    It works on Android, but is not so powerfull.

    Positive comment •Sep 13, 2019
    0
    Guest

    clear, easy to use lots of flexibility

    Positive comment •Dec 16, 2018
    -2
    Thunderbird Icon
    BlueMail icon

    • Most users think BlueMail is a great Thunderbird alternative.

    • BlueMail is Free Personal and ProprietaryThunderbird is Free and Open Source
    • BlueMail is LightweightThunderbird is not according to our users
  7. ElectronMail icon
    ElectronMail icon

    ElectronMail

     23 likes
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    ElectronMail is an Electron-based unofficial desktop client for ProtonMail and Tutanota end-to-end encrypted email providers. The app aims to provide enhanced desktop user experience enabling features that are not supported by the official in-browser web clients.

    9 ElectronMail alternatives
    ElectronMail screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • ProtonMail
    • Electron / Atom Shell
    • Tutanota

    ElectronMail Features

    1.  End-to-End Encryption
    2.  Multiple Account support
    3.  Ad-free
    4.  Full-Text Search
    5.  Privacy focused
    6.  Electron based
    ElectronMail iconThunderbird Icon

    ElectronMail VS Thunderbird

    Is ElectronMail a good alternative to Thunderbird?
     
    Comments about ElectronMail as an Alternative to Thunderbird
     
    Guest

    Thunderbird connects with servers that use standard protocols and with servers for which a plugin was developed. ElectronMail works with ProtonMail ONLY and was specifically designed for this provider. Tutanota support is deprecated since July 2019.

    Negative comment •Oct 3, 2019
    17
    Guest

    It's only used for one provider

    Negative comment •Oct 8, 2021
    3
    Thunderbird Icon
    ElectronMail icon
    • ElectronMail is Free and Open SourceThunderbird is also Free and Open Source
    • ElectronMail is Privacy focusedThunderbird is not according to our users
  9. Trojitá icon
    Trojitá icon

    Trojitá

     17 likes
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    Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values vendor-neutrality that IMAP provides and is committed to be as interoperable as possible.

    37 Trojitá alternatives
    Home

    License model

    • Free • Open Source

    Application type

    Platforms

    • Windows
    • Linux

    Trojitá Features

    1.  QT Based
    2.  IMAP Support
    Excessively quoted text is automatically collapsed
    Encrypted and signed e-mail is supported, with status given in plain English
    Discontinued

    The last update is from June 2016.

    Trojitá iconThunderbird Icon

    Trojitá VS Thunderbird

    Is Trojitá a good alternative to Thunderbird?
     
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