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.
New Zealand
+2
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.
Alternatives list
Cost / License
- Freemium (Subscription)
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Windows
- Gmail
+4
Cost / License
- Free Personal
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Mac
- iPhone
- iPad
Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, of course, also on your desktop.
Cost / License
- Free
- Proprietary
Application types
Alerts
- Discontinued
Platforms
- Windows
+7
Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code insertion via a hook system, and more.
Navigate messages with zooms and swipes across your messages.
Turn your email into colorful, visual tiles you can explore with your fingers or mouse. Rich 3D visualizations and familiar gestures make TouchMail the fastest and easiest way to keep your inbox clean and keep import.
Clyton is an email client with advanced security and spam filtering features. Although priced for the general public, Clyton possesses the reliability and security required by businesses.
+9
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, …
TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).
Cost / License
- Freemium (Pay once)
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Windows
+2
EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL. EmailTray intelligently ranks messages, prioritizes them into 4 Inboxes and alerts you only to the most important.
+2
17 Meru (formerly Gmail Desktop) alternativesDesktop app for Gmail, available on macOS, Linux & Windows.
Comments about Meru (formerly Gmail Desktop) as an Alternative to Thunderbird
- Meru (formerly Gmail Desktop) is Free and Open Source
Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
Germany
EU
United States
Netherlands
Only works for one provider.