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    <h3>Editing: EsmtpTransportFactory.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\Transport\Smtp;

use Symfony\Component\Mailer\Transport\AbstractTransportFactory;
use Symfony\Component\Mailer\Transport\Dsn;
use Symfony\Component\Mailer\Transport\Smtp\Stream\SocketStream;
use Symfony\Component\Mailer\Transport\TransportInterface;

/**
 * @author Konstantin Myakshin &lt;molodchick@gmail.com&gt;
 */
final class EsmtpTransportFactory extends AbstractTransportFactory
{
    public function create(Dsn $dsn): TransportInterface
    {
        $tls = 'smtps' === $dsn-&gt;getScheme() ? true : null;
        $port = $dsn-&gt;getPort(0);
        $host = $dsn-&gt;getHost();

        $transport = new EsmtpTransport($host, $port, $tls, $this-&gt;dispatcher, $this-&gt;logger);

        if ('' !== $dsn-&gt;getOption('verify_peer') &amp;&amp; !filter_var($dsn-&gt;getOption('verify_peer', true), \FILTER_VALIDATE_BOOL)) {
            /** @var SocketStream $stream */
            $stream = $transport-&gt;getStream();
            $streamOptions = $stream-&gt;getStreamOptions();

            $streamOptions['ssl']['verify_peer'] = false;
            $streamOptions['ssl']['verify_peer_name'] = false;

            $stream-&gt;setStreamOptions($streamOptions);
        }

        if ($user = $dsn-&gt;getUser()) {
            $transport-&gt;setUsername($user);
        }

        if ($password = $dsn-&gt;getPassword()) {
            $transport-&gt;setPassword($password);
        }

        if (null !== ($localDomain = $dsn-&gt;getOption('local_domain'))) {
            $transport-&gt;setLocalDomain($localDomain);
        }

        if (null !== ($maxPerSecond = $dsn-&gt;getOption('max_per_second'))) {
            $transport-&gt;setMaxPerSecond((float) $maxPerSecond);
        }

        if (null !== ($restartThreshold = $dsn-&gt;getOption('restart_threshold'))) {
            $transport-&gt;setRestartThreshold((int) $restartThreshold, (int) $dsn-&gt;getOption('restart_threshold_sleep', 0));
        }

        if (null !== ($pingThreshold = $dsn-&gt;getOption('ping_threshold'))) {
            $transport-&gt;setPingThreshold((int) $pingThreshold);
        }

        return $transport;
    }

    protected function getSupportedSchemes(): array
    {
        return ['smtp', 'smtps'];
    }
}
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