Gets or sets a value that specifies whether messages sent with this binding are durable or volatile.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
If this property is set to true, messages are durable; otherwise, messages are volatile. Durable messages are not lost if the queue manager crashes. The default value for this property is true. When exactly once assurances are required (ExactlyOnce is set to true), this property must be set to true.