Got it. After a week I finally discovered that this is in fact a bug from Openfire. The workaround is simple and can be found here:
http://stackoverflow.com/questions/21287847/cannot-receive-send-message-using-sm ack
Got it. After a week I finally discovered that this is in fact a bug from Openfire. The workaround is simple and can be found here:
http://stackoverflow.com/questions/21287847/cannot-receive-send-message-using-sm ack