Class DeadLetterPolicy (1.0.2)

Dead lettering is done on a best effort basis. The same message might be dead lettered multiple times.

If validation on any of the fields fails at subscription creation/updation, the create/update subscription request will fail.

The maximum number of delivery attempts for any message. The value must be between 5 and 100. The number of delivery attempts is defined as 1 + (the sum of number of NACKs and number of times the acknowledgement deadline has been exceeded for the message). A NACK is any call to ModifyAckDeadline with a 0 deadline. Note that client libraries may automatically extend ack_deadlines. This field will be honored on a best effort basis. If this parameter is 0, a default value of 5 is used.