I have just noticed that I have got a message in the Q that has been waiting to be delivered for 2 months (Trying every 20 mins).The reason for failure is that the host is responding connection refused. Does anyone know why this is still in the Q, and hasn't been bounced back to the sender? How can I make it do this? I've tried setting 'retry_duration 5', but this doesn't seem to do anything. Any suggestions gratefully recieved Stephen.