public function __construct(string $user_name, string $company_name, string $user_email, string $message, Domain $domain) 	{ 		$this->user_name = $user_name; 		$this->company_name = $company_name; 		$this->user_email = $user_email; 		$this->message = $message; 		$this->domain = $domain; 	}