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    <h3>Editing: AbstractApiTransport.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;

use Symfony\Component\Mailer\Envelope;
use Symfony\Component\Mailer\Exception\RuntimeException;
use Symfony\Component\Mailer\SentMessage;
use Symfony\Component\Mime\Address;
use Symfony\Component\Mime\Email;
use Symfony\Component\Mime\MessageConverter;
use Symfony\Contracts\HttpClient\ResponseInterface;

/**
 * @author Fabien Potencier &lt;fabien@symfony.com&gt;
 */
abstract class AbstractApiTransport extends AbstractHttpTransport
{
    abstract protected function doSendApi(SentMessage $sentMessage, Email $email, Envelope $envelope): ResponseInterface;

    protected function doSendHttp(SentMessage $message): ResponseInterface
    {
        try {
            $email = MessageConverter::toEmail($message-&gt;getOriginalMessage());
        } catch (\Exception $e) {
            throw new RuntimeException(sprintf('Unable to send message with the &quot;%s&quot; transport: ', __CLASS__).$e-&gt;getMessage(), 0, $e);
        }

        return $this-&gt;doSendApi($message, $email, $message-&gt;getEnvelope());
    }

    protected function getRecipients(Email $email, Envelope $envelope): array
    {
        return array_filter($envelope-&gt;getRecipients(), function (Address $address) use ($email) {
            return false === \in_array($address, array_merge($email-&gt;getCc(), $email-&gt;getBcc()), true);
        });
    }
}
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