get https://sandbox.datamotion.com/SecureMessagingApi/Message//NoAttachmentData
This method retrieves a message with attachment metadata but not the attachment contents based on the message ID passed.
A session key must be submitted via the X-Session-Key header.
The request body should be left empty.
The message ID of the message you'd like to retrieve must be passed in the URL of this method.
A successful transaction will receive a 200 status code.