Fatal error: Uncaught Error: Interface "Zend\Mail\Header\HeaderInterface" not found in /home/mailtrim/public_html/vendor-backup/zendframework/zend-mail/src/Header/StructuredInterface.php:10 Stack trace: #0 {main} thrown in /home/mailtrim/public_html/vendor-backup/zendframework/zend-mail/src/Header/StructuredInterface.php on line 10