Software Map

Virtual Exim is a PHP-enabled Web interface for managing multiple virtual mail domains with Exim and MySQL/PostgreSQL. POP/IMAP accounts, aliases, forwards, and permanent fail accounts can all be created and managed easily without the need for corresponding shell accounts. Virtual Exim also allows the server administrator to designate a SiteAdmin who can create and delete domains on the fly through the interface, so no editing of the Exim configuration file is required. Individual users can also log in to change their "Real Name", passwords, and mail filtering options with ease.

gavamail is a POP3/IMAP server proxy for Gmail. It
sets up a proxy server on your localhost that
talks with the Gmail service using the g4j java
library. It opens up a port on your local machine
which you can then connect to from your favorite
email client.

Buni Meldware Communication Suite is an enterprise
groupware product providing an email server,
calendar server, and a Web mail client. The Web
mail portion is written using Adobe's Flash and
provides a rich cross-browser experience. Protocol
support includes IMAP, POP, SMTP, iCAL, WCAP, and
more. It uniquely supports full database email
storage as well as file system storage of emails
on major database platforms, and is easily
installed via a Web Start graphical installation
process.

Teapop is another RFC1939 compliant POP3-server, however Teapop takes a step further. It has flexible virtual domain support that is remarkable for POP3 servers. Teapop tries to be very flexible, fast and reliable without lowering the security standards.

fdm (fetch and deliver mail) is a simple, lightweight replacement for mail fetching, filtering, and delivery programs such as fetchmail and procmail. It can fetch using POP3, POP3S, IMAP, IMAPS, or stdin, and deliver to a pipe, file, maildir, mbox, or SMTP server, based on a set of regexps. It can be used for both single user and multiuser setups, and is designed with privilege separation when running as root.

qpopper-mysql is a patch to Qualcomm's qpopper POP3 daemon to enable it to do user authentication via a MySQL database, support virtual domains, support Maildir-style mailboxes, and log logins into a MySQL database for possible MTA SMTP authentication relaying use.

Hep Message Server is software that transfers messages between different messaging systems. Eventually, it should transparently route messages between email, weblogs, and instant messaging. Currently Hep does one thing: fetches news feeds from Web sites and lets you view them in your email client.

Katrina (previously known as Instant Web Mail) is a Web-based POP email client. It is easy to install, but there are no Sent mail or Trash folders and no address book. It runs completely out of the box with full functionality and can easily be customized.

XFMail is an X11 application for receiving
electronic mail. It implements most of its email
functionality internally so that it does not
depend on a lot of extra packages. It supports
POP3, MBOX, IMAP4, sendmail, and SMTP. It has
built-in support for interfacing with PGP, GPG,
ispell/aspell, faces, LDAP, and esound. It runs on
most Unix variants.

FreePOPs is a POP3 server that is scriptable in LUA. This means that you can tailor it to your needs by writing a plugin. Plugins are currently implemented for using FreePOPs as an RSS aggregator, a POP3 forwarding server, and a POP3
interface to the webmail services of libero.it, inwind.it, iol.it, blu.it, lycos.it, tin.it, virgilio.it, gmail.com, aol, hotmail, fastmail, mail2world, yahoo and many more (see the Web site for an exaustive list).

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.

The Java Apache Mail Enterprise Server (Apache James) is a 100% pure Java server, designed to be a complete and portable enterprise mail engine solution based on currently available open protocols (SMTP, POP3, NNTP). It requires Java 2 (minimum requirement is the JRE 1.4).

stdnoj is a cross-platform C++ class library that
includes classes for using portable strings,
databases, SMTP, POP, NNTP, arrays, files,
directories, logging, email, and sockets. While
templates are used, no reliance upon STL or other
(traditionally error-prone) technologies has been
used, which increases portability between
compilers.

MrPostman is a Java program that acts as a POP mail server to interface your favorite mail client with Web Mail services like Yahoo! or Hotmail. It is designed so that new Webmail services can be written and used as plugins.

IP*Works! is a comprehensive suite of more than 40 native Linux class libraries for Internet development. It is a robust framework of enterprise-class tools, enabling rapid integration of any major Internet protocol or technology, including FTP, HTTP, SMTP, POP, IMAP, SNMP, LDAP, DNS, RSS, SMPP(SMS), XMPP (Jabber), SOAP, and WebDav. It includes source code for compilation on various Unix platforms, a framework for Objective-C (Cocoa) Mac OS X development, and native PHP extensions.