diff --git a/src/Symfony/Component/Serializer/Normalizer/MimeMessageNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/MimeMessageNormalizer.php index 5f599ba655b6f..cd6f64bc4c37c 100644 --- a/src/Symfony/Component/Serializer/Normalizer/MimeMessageNormalizer.php +++ b/src/Symfony/Component/Serializer/Normalizer/MimeMessageNormalizer.php @@ -64,6 +64,10 @@ public function normalize(mixed $object, string $format = null, array $context = $ret['class'] = $object::class; unset($ret['seekable'], $ret['cid']); + if (class_exists(BodyFile::class)) { + unset($ret['seekable'], $ret['cid']); + } + return $ret; }