<?xml version="1.0"?> 
<!-- Providers for workgroup extensions -->
<smackProviders> 

    <!-- XEP-0280 Message Carbons -->
    <extensionProvider>
        <elementName>sent</elementName>
        <namespace>urn:xmpp:carbons:2</namespace>
        <className>org.jivesoftware.smackx.carbons.provider.CarbonManagerProvider</className>
    </extensionProvider>
    <extensionProvider>
        <elementName>received</elementName>
        <namespace>urn:xmpp:carbons:2</namespace>
        <className>org.jivesoftware.smackx.carbons.provider.CarbonManagerProvider</className>
    </extensionProvider>

</smackProviders>