Thunderbird Alternatives

Thunderbird is described as 'Free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox' 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, SeaMonkey and Geary.

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Thunderbird alternatives are mainly Email Clients but may also be Calendar Apps or Web Browsers. 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

2385

Email Client
Free • Open Source

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

More about Thunderbird

Thunderbird alternatives page was last updated Sep 26, 2024

Missive
Collaborative email and threaded group chat for productive teams. A single app for all your internal and external communication.
20 Missive alternatives
License model
- Freemium • Proprietary
Application types
- Email Client
- Help Desk Platform
Platforms
- Mac
- Windows
- Online
- Android
- iPhone
+6
Missive Features
1. Unified inbox
2. Shared inbox
3. Threaded Conversations
4. Email Scheduling
5. Multiple Account support
6. Customer service
7. Email automation
8. Integrated Web Browser
9. Snooze Mail
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Missive VS Thunderbird
Is Missive a good alternative to Thunderbird?

Pegasus Mail
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.
21 Pegasus Mail alternatives
License model
- Free • Proprietary
Application type
- Email Client
Platforms
- Windows
Pegasus Mail Features
Lightweight
Support for Multiple Users
IMAP Support
POP3 Support
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+2
Pegasus Mail VS Thunderbird
Is Pegasus Mail a good alternative to Thunderbird?

meli
Experimental terminal mail client aiming for configurability and extensibility with sane defaults.
49 meli alternatives
License model
- Free • Open Source
Application type
- Email Client
Platforms
- Linux
meli Features
IMAP Support
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+3
meli VS Thunderbird
Is meli a good alternative to Thunderbird?

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eM Client
Looking for a full-featured email client with a modern and easy-to-use interface? Look no further than eM Client. Rated 3 out of 5, eM Client is a popular alternative to Thunderbird, offering all the features you need to manage y...

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Columba
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.
58 Columba alternatives
License model
- Free • Open Source
Application type
- Email Client
Platforms
- Mac
- Windows
- Linux
- BSD
Discontinued
The project is no longer developed. Last version, 1.4, released in March 2007, can be still downloaded from SourceForge.

Columba VS Thunderbird
Is Columba a good alternative to Thunderbird?

MailMate
MailMate is an IMAP e-mail client for Mac featuring extensive keyboard control, Markdown supported email composition, advanced search conditions and drill-down search links, equally advanced smart mailboxes, automatic signature handling, cryptographic encryption/signing...
69 MailMate alternatives
License model
- Paid • Proprietary
Application type
- Email Client
Platforms
- Mac
- S/MIME
- OpenPGP
MailMate Features
PGP Encryption
GPG Encryption
Support for MarkDown
IMAP Support
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+2
MailMate VS Thunderbird
Is MailMate a good alternative to Thunderbird?

mu
mu is a tool for dealing with e-mail messages stored in the Maildir-format, on Unix-like systems. mu's main purpose is to help you to find the messages you need, quickly; in addition, it allows you to view messages, extract attachments, create new maildirs, …
9 mu alternatives
License model
- Free • Open Source
Application type
- Email Client
Platforms
- Mac
- Linux
- BSD
mu Features
1. GPG Encryption
2. Command line interface
3. Emacs mode
4. Indexed search
5. Contacts
6. EMACS
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mu VS Thunderbird
Is mu a good alternative to Thunderbird?

Mailbox for Zoho
Multi-Account Zoho client for Mac.
79 Mailbox for Zoho alternatives
License model
- Paid • Proprietary
Application type
- Email Client
Platforms
- Mac
- Zoho Mail
Mailbox for Zoho Features
Lightweight
Two-factor Authentication
Real time collaboration
Show all NaN Mailbox for Zoho features ▾
Mailbox for Zoho VS Thunderbird
Is Mailbox for Zoho a good alternative to Thunderbird?