vendor/symfony/mailer/MailerInterface.php line 29
<?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;}