import re


def is_valid_email(email):
    """
  Validate email parameter is a valid formatted email address
  :param email: string containing email address
  :return: True if email is valid otherwise False
  """
    if not email:
        return False

    return bool(re.match("^.+@(\[?)[a-zA-Z0-9-.]+.([a-zA-Z]{2,3}|[0-9]{1,3})(]?)$", email))