Mailbird

Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.

A super sexy, ultra simple desktop mail client built in vala Postler aims to be easy, simple, clean, beautiful, and automagic. It handles IMAP beautifully, and provides the user with …

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features ...

Pegasus Mail is a free, standards-based electronic mail client suitable for use by single or multiple users on single computers or on local area networks.

Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other …

ALTO is a webmail provider which connects to existing mail accounts. Currently AOL, Gmail, Yahoo, iCloud and any IMAP email service are supported. Metadata about mail messages, along with an …

eM Client is a Windows based email client, supporting calendars, contacts and tasks. It supports POP3 and IMAP4 servers as well as chat protocols (e.g. XMPP). Skype is supported as …

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list management functions. It has been an...

Based on Thunderbird but Postbox is not open source. "A new way to work with email Postbox offers powerful new ways to find, use, and view email messages and content, …

Mutt is a small but very powerful text-based mail client for Unix operating systems.

A modern, fast web-mail client with user-friendly encryption and privacy features. 100% Free and Open Source software.

The shareware e-mail client has been developed by a Moldavian company. The Bat supports IMAP and POP3 and has integrated S/MIME as well as PGP and supports external GPG. The …