The RedeliveryDelay is not working for me either. I'm using JBoss Messaging 1.2.0SP1 deployed to JBoss 4.0.5.GA. My destination config looks like this: | <mbean code="org.jboss.jms.server.destination.QueueService" | name="jboss.messaging.destination:service=Queue,name=leadQueue" | xmbean-dd="xmdesc/Queue-xmbean.xml"> | <depends optional-attribute-name="ServerPeer">jboss.messaging:service=ServerPeer</depends> | <depends>jboss.messaging:service=PostOffice</depends> | <attribute name="RedeliveryDelay">300000</attribute> | </mbean> | If I throw a RuntimeException in the MDB, then it retries it immediately multiple times until it eventually goes into the DLQ. It should wait 5 min between each attempt for this case, right? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4042947#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...