I'm having exactly the same problem. If for some reason Messages in a Topic are continually rolled back ,the MQ is trying to stick it in DLQ, but DLQ is rejecting connections.
I've got two security roles in my state file - publisher and subscriber and added both to the security config in DLQ with all permissions set to true. Still, it fails.
Any idea why?
I get the same problem in JBoss 3.2.3
The MDB that's trying to write to the DLQ is configured to listen to a queue on another server over HTTPS. I wonder, then, if it's trying to write the message to the other server's DLQ?