mule-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns="http://www.mulesoft.org/schema/mule/core"
	  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	  xmlns:spring="http://www.springframework.org/schema/beans"
	  xmlns:xmpp="http://www.mulesoft.org/schema/mule/xmpp"
	  xsi:schemaLocation="
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
       http://www.mulesoft.org/schema/mule/core http://www.mulesource.org/schema/mule/core/3.0/mule.xsd
       http://www.mulesoft.org/schema/mule/xmpp http://www.mulesource.org/schema/mule/xmpp/3.0/mule-xmpp.xsd
       ">

	<xmpp:connector
			name="XmppConnector"
			host="talk.google.com"
			port="5222"
			user="example@gmail.com"
			password="[SECRET]"/>

	<model>
		<service name="service">
			<inbound>
				<xmpp:inbound-endpoint connector-ref="XmppConnector" from="example@gmail.com" type="CHAT"/>
			</inbound>
			<outbound>
				<pass-through-router>
					<xmpp:outbound-endpoint connector-ref="XmppConnector" recipient="example2@gmail.com"/>
				</pass-through-router>
			</outbound>
		</service>
	</model>

</mule>