DeadLetterDestination Class

Information about the dead letter destination for an event subscription. To configure a deadletter destination, do not directly instantiate an object of this class. Instead, instantiate an object of a derived class. Currently, StorageBlobDeadLetterDestination is the only class that derives from this class.

You probably want to use the sub-classes and not this class directly. Known sub-classes are: StorageBlobDeadLetterDestination