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.
E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.
no sorting, dont show allmail for gmail
Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).
It doesn't encrypt password storage and doesn't have Master Password function
Sypheed has been my email client for some 15 years, but its more recent lack of updating has been worrisome -- and got to a head now, because my account requires OAuth and Sypheed does not cover that. With much regret I must look for something else.
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.
bluemail pushes all your mail into their clud making it insecure
It works on Android, but is not so powerfull.
clear, easy to use lots of flexibility
Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!
Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, message threading, MIME support (including RFC2047 support for encoded headers), PGP/MIME (RFC2015), various features to support mailing lists, including...
Thunderbird users want a GUI mail application. Mutt is a command line mail application. They are both good and both popular, but very much apples and oranges.
Mutt's a great email client for your terminal, not a GUI app like Thunderbird.
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.
The Bat! is a secure email client software, built to protect your correspondence against third-parties.
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.
TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts.
Professional looking interface, options available at a swipe of the finger tip. Very slick app.
myMail is the smart email app for managing all your accounts on iOS and Android.
One of the best mobile email apps!
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.
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.
It's only used for one provider
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.
Ukraine
Japan
United States
Singapore
Moldova
Germany
EU
Netherlands
Czechia
Free, simple, reliable, easy to manage multiple accounts, fair amount of customization, synchronisation, templates