rejectIncoming

For topics, rejectIncoming specifies that, if any of the subscribers have an outstanding number of undelivered messages on the server that are over the message limit, all new messages are rejected and an error is returned to the producer.

For queues, rejectIncoming specifies that, if messages on the queue have exceeded the maxbytes or maxmsgs value, all new messages are rejected and an error is returned to the producer. (This is the same as the default behavior.)