Yii2 的 mail 问题 [ 2.0 版本 ]

'mailer' => [
    'class' => 'yii\swiftmailer\Mailer',
    'viewPath' => '@common/mail',
    'useFileTransport' => false,
    'transport' => [
        'class' => 'Swift_SmtpTransport',
        'host' => 'smtp.163.com',
        'username' => '******',
        'password' => '******',
        'port' => '25',
        'encryption' => 'tls',
    ],
    'messageConfig'=>[
        'charset'=>'UTF-8',
        'from'=>[***********]
    ],
],

$user = User::findOne(['email' => $this->email]);
$mail = \Yii::$app->mailer->compose();
$mail->setTo($this->email);
$mail->setSubject("邮箱激活");
$mail->setHtmlBody("kkkkkkk");
$mail->send();

邮箱的SMTP也都打开，密码也是用的授权码，在本地调试都好好的，也能发送，在万网虚拟主机就发送不了，提示“getmypid() has been disabled for security reasons”，这破玩意网搜也没搜到是啥，但是从错误提示能看出来是加载compose的时候出错

有没有出现类似问题的老司机带一下