Similar to XMail

Courier Mail Server

Cyrus IMAP server

Apache James

List of mail server software

Qmail

Exim

Postfix (software)

List of open-source codecs

Alien (file converter)

Apache Axis2

Apache Cordova

Apache Geronimo

Apache Hadoop

Apache Hive

Apache Maven

Apache Velocity

Apertium

Aptana

Arora (web browser)

AviSynth

Berry Linux

Blackbox

Brackets (text editor)

Cacti (software)

Ccache