Microsoft Office Outlook

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...

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 …

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, …

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 …

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.

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

nPOPuk is an ultra-small, but comprehensive, e-mail client that runs on a wide range of Windows-based operating systems

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.

Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, …

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 …

DreamMail is one of the best Chinese email client software. It was designed to handle multi-user and multi email account. The supported protocols are SMTP, eSMTP, POP 3, Hotmail and …

GyazMail is a email client software for Mac OS X, based on Cocoa framework, simple, easy-to-use with many features.