Symfony SwiftMailer在环路内发送多封邮件

我需要在一个循环内用symfony swiftmailer发送多封邮件。这是我的密码。

public function __construct($name = null, \Swift_Mailer $mailer, EngineInterface $templating) {
        parent::__construct($name)
        $this->mailer = $mailer;
        $this->templating = $templating;
}

protected function execute(InputInterface $input, OutputInterface $output) {
  foreach ($ads as $ad) {
                if($counter == 10) break;
                $this->sendMail($ad->getUser()->getMail(), $ad, 'matching');
                $counter++;
  }
}

protected function sendMail($mail, $ad, $template = '') {

        if($template == 'matching'){
            $template = 'emails/matching-cars.html.twig';
        }elseif($template == 'owner'){
            $template = 'emails/matching-car-owners.html.twig';
        }

        $message = (new \Swift_Message('Hello Email'))
                ->setFrom('admin@admin.com')
                ->setTo($mail)
                ->setBody(
                $this->templating->render(
                        $template, [
                            'ad' => $ad
                        ]
                ), 'text/html'
        );

        $this->mailer->send($message);
    }

因为我是在循环内进行的,所以很难将邮件数组传递给swift mailer。我在里面查这个 Console Command 我在控制台上看到这个错误。

17:14:09刷新电子邮件时出现错误[应用程序]异常 队列:预期响应代码354,但得到代码“550”,并显示消息 “550 5.7.0请求的操作未执行:每秒电子邮件太多