A server for applications running into thin-clients PCs. It resembles the Web in many ways, but supports stateful sessions. (Python)

Open source xinetd/tcpserver based IMAP server for the Linux platform, with support for Maildir.

Discussion board with admin page in English, French, German, Italian, Spanish, and Dutch. (PHP4)

An SMTP/IMAP/POP3/HTTP (webmail) server, implementing SMTP extensions for mailing list management and spam filtering. (C, C++, Perl) [GNU/Linux, Unix]

An IMAP server developed at Carnegie Mellon University. (C, Perl) [GNU/Linux, Unix]

Open source search engine tool released under GPL and designed to organize search within a website, group of websites, intranet or local system.

A web control panel for dns administrators. DNS information is stored in mysql and can be output to either BIND or tinydns files. (C) [GNU/Linux, Unix]

An IP address update program for dynamic DNS updates as defined in RFC2136. It submits dynamic IP address update requests to a name server automatically. (Perl) (Linux)

A set of PHP scripts for domain administration, MySQL management database, backup scripts generation and scripts for statistic calculation.

Message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.