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Can you send messages to Facebook users from external XMPP servers?

I don't have Facebook account, but I'd like to message some of their users. I did read someplace that Facebook Messenger is using XMPP, so it might be possible to send messages to their servers from ...
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2answers
995 views

Bypass corporate firewall for IM

My friend happens to sit deep inside a corporate firewall with no access to Gmail, Yahoo! or any reasonable site that would allow you to chat or instant message. Is there any alternate means in which ...