<DefaultValueAttribute()>
Public Property EnvelopeID As String

Dim instance As DeliveryStatusNotification
Dim value As String
 
instance.EnvelopeID = value
 
value = instance.EnvelopeID

[DefaultValue()]
public string EnvelopeID {get; set;}

[DefaultValue()]
public: __property string* get_EnvelopeID();
public: __property void set_EnvelopeID( 
   string* value
);

[DefaultValue()]
public:
property String^ EnvelopeID {
   String^ get();
   void set (    String^ value);
}

Property Value

When requesting a DSN, you can specify an identifier to track the status of a message. The value you specify as DeliveryStatusNotification.EnvelopeID, will be returned with the DSN in the "Original-Envelope-ID" header line. This value must be less than 100 characters.

Reference

DeliveryStatusNotification Class
DeliveryStatusNotification Members