SeaMonkey 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 OS X Windows Linux BSD PortableApps.com WYSIWYG Support Built-in RSS reader Extensible by Plugins/Extensions Support for Firefox extensions ... Integrated Email Client Modular System Portable Add a feature 170 Like SeaMonkey is both a WEB BROWSER and EMAIL CLIENT. It's the successor of Mozilla Application Suite or Netscape Communicator, resp. Further it includes also a news client program, an HTML editor (SeaMonkey Composer) and an IRC client (ChatZilla). Guest • Nov 2017 • 5 agrees and 0 disagrees Disagree Agree It has all of Thunderbird's features and many more. apostolfaliagas • Feb 2018 • 1 agrees and 1 disagrees Disagree Agree Thunderbird is a mail application, SeaMonkey appears to be a web browser. Guest • Nov 2017 • 6 agrees and 22 disagrees Disagree Agree
Evolution 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 S/MIME GNOME OpenPGP Built-in RSS reader CalDAV Calendar integration CardDAV ... Encrypted email Integrated Spam Protection Multiple languages POP3 Support Add a feature 148 Like
Geary 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 69 Like Easy to set up. Thunderbird doesn't connect anymore with hotmail and yahoo. No address book. Guest • Jul 2017 • 0 agrees and 3 disagrees Disagree Agree
Claws Mail 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 Lightweight Built-in RSS reader Content Filtering Customizable ... Extensible by Plugins/Extensions Support for IMAP Multiple languages Multiple Account support Add a feature 76 Like Small and quick and not flooded with choices! Guest • Jun 2016 • 3 agrees and 3 disagrees Disagree Agree 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 1 disagrees Disagree Agree Much faster than thunderbird which cloaks on weak machines. Guest • Jan 2018 Disagree Agree
Mutt 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 OS X Windows Linux Xfce Command line interface Support for IMAP POP3 Support S/MIME support Add a feature 51 Like
Sylpheed 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 OS X Windows Linux BSD PortableApps.com Lightweight Add a feature 52 Like
Mailspring Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro... Freemium $ $ $ Open Source Mac OS X Windows Linux Arch Linux Fedora ... Ubuntu Dark theme Email tracking Multiple Account support Sync Contacts ... Conversation view Customizable Drag n drop Email Analytics Email tracking & analytics Extensible by Plugins/Extensions Support for IMAP Support for Themes Unified inbox Add a feature 22 Like Great alternative, especially for casual users. Simple, streamlined UI, feels fresh. 3psilon • May 2018 Disagree Agree Supports Linux and all IMAP providers, offers shortcut customization, extensible via plugins. bengotow • Nov 2017 • 0 agrees and 1 disagrees Disagree Agree Very simple, perfect IU and possibility to follow what happen to your emails. Guest • Feb 2018 • 0 agrees and 1 disagrees Disagree Agree nice interface (if you are talking about the feature, kcontact/kmail is the best, but this has a nice interface) peterbro • Feb 2018 • 0 agrees and 1 disagrees Disagree Agree
Kontact - KMail 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 OS X Windows Linux BSD No features added Add a feature 30 Like
Icedove 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 21 Like
Trojitá 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 12 Like
Zimbra Desktop 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 OS X Windows Linux No features added Add a feature 29 Like 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
Pantheon Mail Pantheon Mail is a free open source email client forked by the elementary OS community from Geary... Free Open Source Linux elementary OS Multiple Account support Add a feature 7 Like
Front Front is the first email management software for teams that integrates with the tools you already use. With Front, you can assign messages to teammates, write comments... Commercial $ $ $ Mac Windows Linux Android iPhone ... Android Tablet iPad Email tracking Real time collaboration Add a feature 12 Like
sup 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 11 Like
Nylas Mail Lives Nylas Mail Lives is a fork of Nylas Mail that fixes many longstanding issues, improves the client experience, and is committed to... Free Open Source Mac OS X Windows Linux Self-Hosted Extensible by Plugins/Extensions Multiple Account support Add a feature 3 Like
