I thought it would be easy too. We have 2 openfire servers and did all the steps and after manually allowing each server they can talk to eachother, but we can't communicate with any xmpp like dukgo.com or google accounts ect?
to be clear we cant message from our openfire to those other servers. They can message to us but we cant "authorize" them and / or message to them back so we cant seem to get messages out to them. Friend buddy requests do not seem to come regardless the direction sent.