Fatal error: Uncaught Error: Class 'Egulias\EmailValidator\Validation\RFCValidation' not found in /var/www/typo3/vendor/egulias/email-validator/src/Validation/NoRFCWarningsValidation.php:9 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/egulias/email-validator/src/Validation/NoRFCWarningsValidation.php on line 9