157 Like SeaMonkey Good alternative? YES NO The SeaMonkey project is a community effort to develop the SeaMonkey all-in-one internet application suite. A lighter alternative to... Free Open Source Mac Windows Linux BSD PortableApps.com WYSIWYG Support Built-in RSS reader Extensible by Plugins/Extensions Support for Firefox extensions Integrated Email Client Add a feature
138 Like Evolution Good alternative? YES NO Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list... Free Open Source Linux BSD GNOME Built-in RSS reader CalDAV Calendar integration CardDAV Encrypted email Integrated Spam Protection ... Multiple languages POP3 Support Add a feature
57 Like Nylas Mail Good alternative? YES NO Nylas Mail is an email client designed to be friendly and easy to use but also powerful and highly extensible. It works "out of the box" with all the major... Freemium Mac Linux Web Self-Hosted Cloud sync Extensible by Plugins/Extensions Sync with Google Calendar Office 365 integration Add a feature Good if you plan on spending $7+$9/mo as site suggests. The free one reuires you to be a nerd. If you're not ready for any of the options above, scroll down! Guest • Nov 2016 • 1 agrees and 1 disagrees Disagree Agree Good looking. Better compatibility. Good support Guest • Jul 2017 Disagree Agree Totaly free and opensource beside to Mailbird. Beautifull and full functionnal. I prefer N1 rather than Mailbird stanwakeru • Feb 2016 • 1 agrees and 2 disagrees Disagree Agree It offers great sync capabilities, however requires you to pay for the service after a trial period. Guest • Jul 2016 • 0 agrees and 1 disagrees Disagree Agree
65 Like Geary Good alternative? YES NO Geary is an email application built for GNOME 3. It allows you to read and send email with a simple, modern interface. Free Open Source Linux BSD GNOME No features added Add a feature Easy to set up. Thunderbird doesn't connect anymore with hotmail and yahoo. No address book. Guest • Jul 2017 Disagree Agree
69 Like Claws Mail Good alternative? YES NO Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration... Free Open Source Windows Linux BSD Xfce Built-in RSS reader Content Filtering Extensible by Plugins/Extensions Support for IMAP Lightweight Multiple languages ... Multiple Account support Add a feature It's a good, lightweight alternative, but the UI is clunky and it misses HTML message composing. You have been warned! 3psilon • Sep 2017 • 1 agrees and 0 disagrees Disagree Agree Small and quick and not flooded with choices! Guest • Jun 2016 • 2 agrees and 3 disagrees Disagree Agree
46 Like Mutt Good alternative? YES NO 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... Free Open Source Mac Windows Linux Xfce Command line interface Support for IMAP POP3 Support S/MIME support Add a feature
47 Like Sylpheed Good alternative? YES NO Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and... Free Open Source Mac Windows Linux BSD PortableApps.com Lightweight Add a feature
21 Like Icedove Good alternative? YES NO Icedove is the Thunderbird email client rebranded by Debian . Free Open Source Linux Xfce Built-in RSS reader Extensible by Plugins/Extensions Integrated Chat Export to OPML Import feeds from OPML Tabbed interface Add a feature
30 Like Zimbra Desktop Good alternative? YES NO The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud... Free Personal Mac Windows Linux No features added Add a feature This one goes beyond the features and qualities of Thunderbird which is the very reason I am looking for an alternative! Guest • Dec 2016 Disagree Agree
10 Like Trojitá Good alternative? YES NO Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values vendor-neutrality that IMAP provides... Free Open Source Windows Linux IMAP debugging Support for IMAP Add a feature
23 Like Kontact - KMail Good alternative? YES NO 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... Free Open Source Mac Windows Linux BSD No features added Add a feature
6 Like Pantheon Mail Good alternative? YES NO Pantheon Mail is a free open source email client forked by the elementary OS community from Geary... Free Open Source Linux elementary OS No features added Add a feature
10 Like sup Good alternative? YES NO 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... Free Open Source Linux Command line interface Console-based Multiple Account support Add a feature
4 Like mu Good alternative? YES NO 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... Free Open Source Mac Linux BSD Command line interface Indexed search Add a feature
2 Like Balsa Good alternative? YES NO Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you would expect in a robust mail client. Free Open Source Linux Xfce No features added Add a feature
