Penguin Greetings (pgreet) engine is a web-based greeting cards for LINUX and other UNIX-based systems written in Perl.

PhpXmail is a web based management software for the Xmail mail server written in php.

qmailAdmin is a free software package that provides a web interface for managing a qmail system with virtual domains.

Reqtool is a pure perl application that both handles email requests and provides a web interface to track, edit and resolve these email requests.

Virtual Mail for Postfix helps you to manage virtual pop3/imap domains using Postfix, Courier and PostgreSQL.

bounce 1.3.5 - Mail-bounce is a general-purpose Perl program for returning E-mail to the sender.

Eremove is a simple application for linux, based on GTK, for logging into a POP3 mail account.

Fdm Script is a program to fetch mail and deliver it in various ways depending on as user-supplied ruleset.

Fetchmail is a full-featured and robust remote mail retrieval and forwarding utility.

Getmail is a mail retriever designed to allow you to get your mail from one or more mail accounts.

GMime suite provides a core library and set of utilities which may be used for the creation and parsing of messages using the Multipurpose Internet Mail Extension (MIME).

Ishmail is a graphical mail reader for Unix systems.

mpop is a POP3 client: it retrieves mail from POP3 mailboxes.

Heirloom mailx (previously known as nail) is a mail user agent for Unix systems.

Nameko can retrieve message from a POP3 server, parse e-mails, send email through SMTP server, and more.

Perl Webmail is a CGI/mod_perl application that interfaces with external POP3 and SMTP services.

Popper is a Web based mail client that allows you to access your personal mailboxes on POP3 servers.

XMail Application is an Internet and intranet mail server.

KMail is the email component of Kontact, the integrated personal information manager of KDE.

Peephole is a GNU/linux server that periodically checks users' mailboxes harvesting only last emails, extracting user-defined regular espressions.

deepOfix Mail Server is a popular GNU/Linux server operating system.

libspopc is a simple and light pop3 mail client library used by small programs.

Dada Mail is an intuitive, web-based e-mail list management system.

Elmo is a feature-rich, highly configurable and fast mail client.

Pantomime provides a set of Objective-C classes that model a mail system.