AngleMail is an alternative email module for phpGroupWare. It has features expected of a Web-based email client, such as inbox filters, multiple accounts, spell checker, icon themes and many others. - Read more

b1gMail is a PHP and MySQL Web-based email system. - Read more

jwma is a webmail implementation following the JSP Model 2 - Read more

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

Pronto! is a highly modularized GTK Mail Client written in Perl ..... - Read more

'elmo' is a feature-rich console mail client for power users. It integrates functionality commonly realised by separate pieces of software in other mailers and competes with Mutt - Read more

Ascension is a KDE email client. It supports IMAP, POP3, and Unix mailboxes, viewing of HTML messages, limited searching of headers, and dockable parts. - Read more

gitmail, Ghost In The Mail is an anonymous mail client for linux written in C and designed in GTK+ 2. - Read more

kShowmail is a KDE tool for watching for email on POP3 servers. Headers and complete email messages can be displayed, and email can be deleted without downloading. - Read more

Simple e-mail client with support of POP3, IMAP4rev1, SMTP, NNTP. Multiple accounts. - Read more

Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you would expect in a robust mail client. - Read more

A program called Mailleds inspired this program. The idea was to blink an led on the keyboard when new mail is waiting - Read more

Pygmy - GNOME mail client. - Read more

Columba is an Email Client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful email management tool with features to enhance your productivity and communication. - Read more

Ishmail is a graphical mail reader for Unix systems. Features include POP and IMAP Mailbox access, MH, MMDF, and Classic Unix local mailboxes, and MIME support, including MIME attachments. - Read more

Fast, small and easy webmail client. - Read more

travmail is an IMAP Web mail client that features optional use of frames, stylesheets, HTML composition, filters, and more. - Read more

LHMail is an email library written in Qt able to send messages over SMTP protocol and receive via POP3, suitable for implementing email clients. See LHMail homepage for more info. - Read more

BoboMail is a Web mail application which enables mail access through the Web to your POP3 account. It handles all kinds of MIME types (including HTML email), and unlike other Web MUAs it is written in Python. - Read more

JMail is a mail client written in Java. It handles attached files, HTML mails, filters and other stuff... It can be used with a LDAP directory. - Read more