ejabberd

ejabberd Publisher's Description:
ejabberd is an instant messaging server allows to transfer presence and status information between users connected to servers and support real-time communications between them.

Features:

* (Mostly) XMPP-compliant
* Web-based administration
* Load balancing: can run in a cluster of machines
* Fault-tolerance: database can be replicated and stored on multiple nodes (nodes can be added or replaced on the fly)
* SSL/TLS support
* Multi-User Chat (MUC/conference)
* IRC transport
* Jabber user directory, based on users vCards
* Service discovery


WHAT'S NEW

Version 1.1.4:

* Better LDAP support.
* Support for UTF-8 with MySQL 5.
* Roster migration script bugfixes.
* Performance improvements on user removal.
* Traffic shapers bugfix.
* Configuration: host value is now case insensitive.
* Build: ejabberd.cfg file is not overwritten with 'make install' command.