Yep, I agree that this is not a QoS setting and is purely the JMS acknowledge mode. I obviously misunderstood the question as I thought that was what you were asking for, apologies for this. :) We have been holding a face 2 face this week in Newcastle (UK) and have the development team and other parties involved. Part of this meeting has focussed on a new transport architecture which will centralise all of these aspects, providing the ability for us to enforce policies (such as QoS) in a more generic manner. This development stream will occur in parallel with the current trunk and will be a big leap forward in the capabilities of the ESB. At present we may not be quite there to satisfy your requirements but I can promise you that it is coming down the pipeline. Any input you wish to make into this process would be greatly appreciated. Kev View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4139593#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...