Hey,
so im using the registerDirs option.
My self created classes get loaded well and work. But once i throw in the PHPMailer folder and try to create a new one i get a 500 error.
<?php
class IndexController extends ControllerBase
{
    public function indexAction()
    {
        $mail = new PHPMailer();
    }https://github.com/PHPMailer/PHPMailer
Has anyone an idea what im doing wrong here?