In Openfire how can i send a multicast message to multiple sub set of users. (Sender can see it like a group chat, but receivers should get it like a individual/private message from sender)
Openfire itself has Send menu in Session page of Admin Console. That will send a message from admin to all online users. There is also a broadcast plugin, which allows sending to selected groups, but you need a client which is able to send a message to a direct JID address. E.g. Spark can’t do that. Some clients have built-in broadcasting capabilities. Say in Spark there is Actions > Send Broadcast menu, in which you can select groups/users (both online and offline) and then send a message.