Fatal error: Uncaught Error: Interface 'Symfony\Component\Mailer\Exception\ExceptionInterface' not found in /var/www/typo3/vendor/symfony/mailer/Exception/TransportExceptionInterface.php:17
Stack trace:
#0 {main}
thrown in /var/www/typo3/vendor/symfony/mailer/Exception/TransportExceptionInterface.php on line 17