<?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;use Symfony\Component\Mailer\Exception\TransportExceptionInterface;use Symfony\Component\Mime\RawMessage;/** * Interface for mailers able to send emails synchronous and/or asynchronous. * * Implementations must support synchronous and asynchronous sending. * * @author Fabien Potencier <fabien@symfony.com> */interface MailerInterface{ /** * @throws TransportExceptionInterface */ public function send(RawMessage $message, Envelope $envelope = null): void;}