name : TransportInterface.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * 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\TransportExceptionInterface; use Symfony\Component\Mailer\SentMessage; use Symfony\Component\Mime\RawMessage; /** * Interface for all mailer transports. * * When sending emails, you should prefer MailerInterface implementations * as they allow asynchronous sending. * * @author Fabien Potencier <fabien@symfony.com> */ interface TransportInterface extends \Stringable { /** * @throws TransportExceptionInterface */ public function send(RawMessage $message, ?Envelope $envelope = null): ?SentMessage; }