Extensible Messaging and Presence Protocol, or 
XMPP, is an open, 
XML-based 
protocol for near real-time extensible 
messaging and 
presence[?]. It is the core protocol of the 
Jabber Instant Messaging and Presence technology which is currently deployed on thousands of servers across the Internet and is used by millions of people worldwide. The 
IETF XMPP working group aims to adapt the XMPP for use as an IETF Instant Messaging and Presence technology.
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