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    <h3>Editing: MessageLoggerListener.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Mailer\EventListener;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Mailer\Event\MessageEvent;
use Symfony\Component\Mailer\Event\MessageEvents;
use Symfony\Contracts\Service\ResetInterface;

/**
 * Logs Messages.
 *
 * @author Fabien Potencier &lt;fabien@symfony.com&gt;
 */
class MessageLoggerListener implements EventSubscriberInterface, ResetInterface
{
    private MessageEvents $events;

    public function __construct()
    {
        $this-&gt;events = new MessageEvents();
    }

    public function reset()
    {
        $this-&gt;events = new MessageEvents();
    }

    public function onMessage(MessageEvent $event): void
    {
        $this-&gt;events-&gt;add($event);
    }

    public function getEvents(): MessageEvents
    {
        return $this-&gt;events;
    }

    public static function getSubscribedEvents(): array
    {
        return [
            MessageEvent::class =&gt; ['onMessage', -255],
        ];
    }
}
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