"gaohoward" wrote : In jbm 1.4, we provide a 'ordering group' feature to guarantee the ordering of message delivery. Please read the user guide for details. | Ok, you provide the ordering of message delivery, but you also guarantee the ordering when the provider starts REdelivery. I mean, the provider should send again the messages when some message is lost on the consumer side , Do this messages mantain the producer ordering? Thanks. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4265797#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...