open server

NewsSucker scans a given newsgroup of a news server for binary attachments.

An advanced email and collaboration server.

Real-time monitoring and statistics for Apache HTTP server.

hMailServer is a free e-mail server for Microsoft Windows.

Chat with your friends on UDP protocol without using any external server.

vsftpd is a GPL licensed FTP server for UNIX systems, including Linux.

OpenWebAds is a web server application

AXIGEN FREE mail server-(E)SMTP,POP3,IMAP4,WebMail,RPOP,Groupware,basic support

Backup software: TAPE, DVD, FTP, ZIP, SQL Server, E-Mail, Synchronization

Parabuild is a software build management and continuous integration server.