Message Delivery Modes

The JMSDeliveryMode message header field defines the delivery mode for the message. JMS supports PERSISTENT and NON_PERSISTENT delivery modes for both topic and queue. EMS extends these delivery modes to include a RELIABLE_DELIVERY mode.

You can set the default delivery mode for the Message Producer, as described in Configure a Message Producer. This default delivery mode can be overridden by the client when sending a message, as described in Send Messages.