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No, if you have a client connecting to Google's XMPP servers, your messages will not show up if the other user is only logged in on Hangouts. Hangouts ALSO can'
by X-Istence 13y ago
No, if you have a client connecting to Google's XMPP servers, your messages will not show up if the other user is only logged in on Hangouts. Hangouts ALSO can't send messages to an XMPP only user (even if Google is hosting the talk servers, as is the case for my Google Apps domains).