Just to complete the thread, What I was suggesting was to keep incrementing deliveries only after ACK, and recover the delivery counter from the journal, by inspecting rolled back data. But as we talked on IRC, I only created a flag, and if that flag is set we would update the deliveryCount after sending. I have created a flag StrictUpdateDelivery on the Configuration. (If anyone has a better name). I thought about calling it StrictJMS, but that wouldn't be a good name as we could still use this on the core-api only. Also, another option I considered was to place the attribute on the SessionFactory (or JMSConnectionFactory). If Tim or anyone think it's better to move or rename the attribute anywhere, it should be an easy change. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4210897#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...