code: function MandrillSuccessStatus(response) {
    MessagingServiceStatus.call(this, 'mandrill');
  
    // Message successfully sent
    this.state.message = response.status;
  
    // Queued parsing
    this.state.code = (response.status === 'queued' ? this.StatusCodes.QUEUED : this.StatusCodes.SUCCESS);
  }
docs: /*=============================================================================
  
  Define Mandrill Service Status Handlers
  
  ============================================================================= /*
  Success Status
  
  @param response     JSON response object from Mandrill service