Best Open Source Email Clients for Linux

Mozilla Thunderbird

Mozilla Thunderbird is a free and open-source email client. It is not only an email client but it also used as news, and chat client developed by the Mozilla Foundation and this foundation also developed the Firefox browser and Firefox OS. Mozilla Thunderbird has a beauty it supported cross-platform like it install on on Windows, Mac, and Linux. It also provides the features of customization you can tailor it according to your requirement. Mozilla Thunderbird provides the features of integration you can integrate through the plugin. It provides multiple features like it is a fast and safe email client, provides easy-to-use features, supported IMAP/POP, RSS. The portable version of providing security leaves no personal information behind on the machine you run it on. It also manages the number of emails, newsgroup, news feed account.

Evolution

Evolution is an open-source email client for most Gnome-based distributions. Its formally known as Novell Evolution and Ximian Evolution. Evolution is released under the terms of the GNU Lesser General Public License. Evolution functionality and user interface is like a Microsoft Outlook. Evolution provides the built-in support of calendar and contact and its user interface is very simple as compare to Mozilla Thunderbird. Evolution provides E-mail encryption with GPG and S/MIME and Secure network connections encrypted with STARTTLS, TLS, and SSL. The number of features list in Evolution are provide RSS reader plug-in and provide the features of contact management with local address books, Google address books, provide automatic spam filtering and e-mail retrieval with the POP and IMAP protocols.

KMail

KMail is an open-source email client software and a part of the KDE desktop environment. KMail is similar to the Evolution email client. KMail supported POP3, IMAP, IMAP and allow you to send mail via SMTP and Sendmail. By using KMail you can encrypt, decrypt and sign your message and it also supported OpenPGP. Configuration of KMail is very complex as compare to Thunderbird and also it is difficult to get all components like calendar, chat client, address book, and email client by configuring one account under KDE. The interface of KMail is not very user-friendly as compared to Evolution and Thunderbird but it very features enrich software. Some comprehensive features of KMail are Mailing list management, Importing mail from other mail clients, Integration with spam checkers, plain text and secure logins, using SSL and TLS, HTML Mail, and many more.

Geary

Geary is an open-source IMAP email client built for the GNOME desktop environment and developed by Yorba Foundation. It is a Lightweight email client which allows you to read and send an email with a simple and easy modern interface. It comes with a very simple interface and you can easily read the entire discussion. Geary supported Gmail, Yahoo! Mail, Outlook.com, and popular IMAP servers. It is written in Vala language and it has an elegant design with a modern email client. The list of features provided by Geary is a modern and straightforward interface, desktop notification of new mail, quick account setup, fast keyword search, mail organized by conversations,full-featured HTML mail composer, etc.