Icedove-UXP

A FLOSS mail application built on the Unified XUL Platform.

Balsa

Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you…

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response

Columba is an email client written in Java, featuring a user-friendly graphical interface with…

Apps/Evolution - GNOME Wiki!

Geary is an email application built for GNOME 3.

The best and most innovative mail app to master your overloaded mailbox.

Email client by KDE, supporting POP3 and IMAP mailboxes.

Mailbird is the best email client for Windows 7, 8 and 10

Mail and Calendar apps already built in Windows 10.

Add forums and commenting to your site. Unlimited posts, users and traffic, for free. Embeddable, styleable and scriptable.

í ½í² Mail app for Nextcloud

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).

The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.

Navigate messages with zooms and swipes across your messages.