This property is set by MSMQ, and is used primarily by the receiving Queue Manager when authenticating a message. The receiving Queue Manager uses the sender identifier in this property to verify where the message originated and to verify the sender has access rights to a queue.
[Visual Basic] Overridable Public ReadOnly Property SenderId As Byte () [C#] public byte[] SenderId {virtual get;} [C++] public: __property virtual unsigned char* get_SenderId(); [JScript] public function get SenderId() : Byte[];
Message Class | Message Members | System.Messaging Namespace