yii mailer 扩展发送邮件

// 将mailer扩张放到 yii 的extension目录下
       $message = 'Hello World!';
        $mailer = Yii::createComponent('application.extensions.mailer.EMailer');
        $mailer->Host = 'smtp.163.com';
        $mailer->IsSMTP();
        $mailer->SMTPAuth = true;
        $mailer->From = 'e********7@163.com';
        $mailer->AddReplyTo('e******7@163.com');
        $mailer->AddAddress('4******6@qq.com');
        $mailer->FromName = '你大爷';
        $mailer->Username = 'es**o**07';    //这里输入发件地址的用户名
        $mailer->Password = '8********7';    //这里输入发件地址的密码
        $mailer->SMTPDebug = FALSE;   //设置SMTPDebug为true，就可以打开Debug功能，根据提示去修改配置
        $mailer->CharSet = 'UTF-8';
        $mailer->Subject = Yii::t('demo', 'Yii rulez!');
        $mailer->Body = $message;
        $x = $mailer->Send();