MessageReceiver.Abandon Method (Guid)
Discards the message and relinquishes the message lock ownership.
Assembly: Microsoft.ServiceBus (in Microsoft.ServiceBus.dll)
When the message receiver fails to get the message from the queue or topic, this method should be called. The Service Bus will increment the delivery count of the message. The message receiver now can either attempt to receive the message again or move it to the dead-letter queue.