Every queue manager should have a dead-letter queue (DLQ). What happens when a message cannot be delivered to the destination queue? Local puts If the message is put to a local queue and the message can't be delivered, then the MQPUT fails.  A reason code is returned to the putting application and the application will need to handle, or manual intervention might be required. Remote puts If a receiving channel cannot put the message to its destination queue, then it is placed on the dead letter queue, if one has been defined. If no dead letter... [More]

Tags:  dead-letter manager persistend speed letter queue non dead npmspeed define mq wmq message dlq mqseries webbsphere