code: def postman(host, port=587, auth=(None, None),
              force_tls=False, options=None):
      
      return Postman(
          host=host,
          port=port,
          middlewares=[
              middleware.tls(force=force_tls),
              middleware.auth(*auth),
          ],
          **options
      )
docs: Creates a Postman object with TLS and Auth
      middleware. TLS is placed before authentication
      because usually authentication happens and is
      accepted only after TLS is enabled.
  
      :param auth: Tuple of (username, password) to
          be used to ``login`` to the server.
      :param force_tls: Whether TLS should be forced.
      :param options: Dictionary of keyword arguments
          to be used when the SMTP class is called.