Unfortunately upgrading to messaging-1.4.2 and newest remoting didn't resolve our problem. Messages still get stuck after a while. Perhaps I should mention that we use transactions on both sides, producer and consumer and persistence: Producer: queueSession = queueConnection.createQueueSession(true, Session.AUTO_ACKNOWLEDGE); | ... | sender.send(objectMessage, DeliveryMode.PERSISTENT, 4, 0); | Consumer is a MDB with the following annotation: | @ActivationConfigProperty( | propertyName="sessionTransacted", | propertyValue="true" | ) | Any ideas? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4204250#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...