code: def email_domain_free(value):
      
  
      domain = helpers.get_domain_from_email_address(value)
      if domain.lower() in free_domains:
          raise ValidationError(MESSAGE_USE_COMPANY_EMAIL)
docs: Confirms that the email address is not using a free service.
      @param {str} value
      @returns {None}
      @raises AssertionError