Open Source BlueMail AlternativesEmail Clients and other similar apps like BlueMail

Alternatives list

1. 

   

   Thunderbird

    2566 likes

   Cross-platform email client supporting multiple identities, chat, and strong filtering. Extend functionality with add-ons like RSS/Atom feed readers and PGP support.

   88 Thunderbird alternatives

   Cost / License

   • Free
   • Open Source (MPL-2.0)

   Application types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Android
   • BSD
   • AppImageHub
   • Snapcraft
   • Flathub
   • PortableApps.com
   • F-Droid
   • Haiku
   • Homebrew
   • Chocolatey

   

   

   

   +8

   

   More about Thunderbird  

   

   Is Thunderbird a good alternative to BlueMail?

    

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   2comments

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   Thunderbird vs BlueMail Comments

    

   Guest

   Negative comment•Sep 25, 2017

   2

   Bluemail is much more intuitive, has a snooze function and a much better designed UI.

   Review by a new / low-activity user.

   WillZegal

   Positive comment•Mar 4, 2025

   0

   Bluemail is more nice looking, indeed. But Thunderbird is more powerfull (filter, folders, addons) and I find it more convenient when you have a lot of email accounts. I rather use Betterbird that is a fork.

   Review by a new / low-activity user.

   

   

   • Thunderbird is Free and Open SourceBlueMail is Free Personal and Proprietary
   • Thunderbird is Customizable and Privacy focusedBlueMail is not according to our users
2. 

   

   K-9 Mail

    370 likes

   K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.

   42 K-9 Mail alternatives

   Cost / License

   • Free
   • Open Source (Apache-2.0)

   Application type

   • Email Client

   Origin

   • International

   Platforms

   • Android
   • Android Tablet
   • F-Droid

   

   

   

   +4

   

   More about K-9 Mail  

   

   Is K-9 Mail a good alternative to BlueMail?

    

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   1comment

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   K-9 Mail vs BlueMail Comments

    

   Guest

   Positive comment•May 8, 2019

   -1

   great app, but not available on mac/ipad :(

   Review by a new / low-activity user.

   

   

   • K-9 Mail is Free and Open SourceBlueMail is Free Personal and Proprietary
   • K-9 Mail is Privacy focusedBlueMail is not according to our users
4. 

   

   Betterbird

    82 likes

   Betterbird, a soft fork of Mozilla Thunderbird, improves user experience with advanced features, bug fixes, security patches, and multi-row descriptions similar to Outlook. Compatible with multiple platforms and can be used alongside Thunderbird, sharing the same profile.

   30 Betterbird alternatives

   Cost / License

   • Free
   • Open Source

   Application type

   • Email Client

   Origin

   • Germany
   • EU

   Platforms

   • Mac
   • Windows
   • Linux
   • Flathub
   • Chocolatey

   

   

   

   +9

   

   More about Betterbird  

   

   Is Betterbird a good alternative to BlueMail?

    

   |

   1comment

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   Betterbird vs BlueMail Comments

    

   WillZegal

   Positive comment•Mar 4, 2025

   0

   BlueMail is more good-looking. But Betterbird is much more powerful with folders (per account or cross-accounts in local), filters, add-ons (the sames as Thunderbird) and so on. I'd rather use Bluemail for one or two mail accounts and no need of powerful features, and Betterbird for many email accounts and powerful features. For instance, you can put in one single folder all the mailing list you have subscribed, even with different accounts.

   Review by a new / low-activity user.

   

   

   • Betterbird is Free and Open SourceBlueMail is Free Personal and Proprietary
   • Betterbird is Privacy focusedBlueMail is not according to our users
5. 

   

   Evolution

    208 likes

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

   70 Evolution alternatives

   Cost / License

   • Free
   • Open Source (LGPL-2.1)

   Application types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

   • Linux
   • BSD
   • Flathub
   • S/MIME
   • GNOME
   • OpenPGP

   

   

   

   +4

   

   More about Evolution  

   

   Is Evolution a good alternative to BlueMail?

    

   |

   1comment

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   Evolution vs BlueMail Comments

    

   disassembler

   Negative comment•Oct 3, 2022

   0

   Evolution is very much like ThunderBird is just scary looking

   Review by a new / low-activity user.

   

   

   • Evolution is Free and Open SourceBlueMail is Free Personal and Proprietary
6. 

   

   FairEmail

    90 likes

   Open-source, privacy-focused email client offering features such as encryption via OpenPGP and S/MIME, unlimited accounts, a unified inbox, customizable settings, and reformatted emails to prevent phishing. Supports two-way synchronization and provides Pro features for additional customization.

   Cost / License

   • Freemium
   • Open Source (GPL-3.0)

   Application type

   • Email Client

   Origin

   • Netherlands
   • EU

   Platforms

   • Android
   • Android Tablet
   • F-Droid

   

   

   

   +5

   

   More about FairEmail  

   

   Is FairEmail a good alternative to BlueMail?

    
7. 

   

   Geary

    106 likes

   Geary is an email application built around conversations, for the GNOME 3 desktop.

   48 Geary alternatives

   Cost / License

   • Free
   • Open Source

   Application type

   • Email Client

   Origin

   • United States

   Platforms

   • Linux
   • BSD
   • Flathub
   • GNOME
   • Flatpak

   

   More about Geary  

   

   Is Geary a good alternative to BlueMail?

    
9. 

   

   Ltt.rs

    3 likes

   No-frills, easy to use, easy to maintain Email client for Android based on the JSON Meta Application Protocol (JMAP).

   Cost / License

   • Free
   • Open Source (Apache-2.0)

   Application type

   • Email Client

   Origin

   • Germany
   • EU

   Platforms

   • Android
   • F-Droid

   

   

   

   +2

   

   More about Ltt.rs  

   

   Is Ltt.rs a good alternative to BlueMail?

    
10. 

    

    Librem Mail

     3 likes

    End-to-end encrypted email used by nearly everybody already.

    Cost / License

    • Paid
    • Open Source

    Application type

    • Email Client

    Origin

    • United States

    Platforms

    • Android
    • Android Tablet

    

    

    

    +1

    

    More about Librem Mail  

    

    Is Librem Mail a good alternative to BlueMail?

     
11. 

    

    monocles mail

     3 likes

    monocles mail is a fork of the K-9 mail version 5.600 with the old K-9 mail layout.

    Cost / License

    • Freemium
    • Open Source

    Application type

    • Email Client

    Origin

    • Germany
    • EU

    Platforms

    • Online
    • Android
    • F-Droid

    

    

    

    +2

    

    More about monocles mail  

    

    Is monocles mail a good alternative to BlueMail?

     
12. 

    

    Aerion

     1 like

    Aerion is a modern, lightweight email client inspired by Geary, focused on resource efficiency and a clean user experience.

    Cost / License

    • Free
    • Open Source (Apache-2.0)

    Application type

    • Email Client

    Origin

    • Hong Kong SAR China

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • Mac
    • Windows

    

    More about Aerion  

    

    Is Aerion a good alternative to BlueMail?