When the sender sends a message as I know if the message was received the server?, whether the recipient is offline or online.
I have implemented xmpp extensions: XEP-0085: Chat State Notifications and XEP-0184: Message Delivery Receipts, but I need to know if the server is receiving messages. I am using the Open-Fire server.
Thank you very much and excuse my english.
there is no way..
There is one extention that might help you search for AMP extention. but you probably will need to implement your own extention.
Closing, feel free to continue this discussion on the mailing list.
[XMPPStreamFacebook] Issue #89 - Call super when socketDidDisconnect