Anybody know about a working AMAZON SES plugin (delivery + callback for bounces) for Mautic 6.0?

It used to work, but after I tested something and removed the plugin temporarily from the plugins folder, moved it back, it won’t update/activate again.
I cleared the cache several times. I run php bin/console mautic:plugins:reload several times, no success:

I tried a new install several times with

composer require etailors/mautic-amazon-ses:^1.0 -W

No success in activating the plugin. I get the error:

Mautic\PluginBundle\Event\PluginUpdateEvent::__construct(): Argument #3 ($metadata) must be of typ
e array, null given, called in /var/www/mautic/docroot/app/bundles/Plug
inBundle/Helper/ReloadHelper.php on line 83

Do I need a plugin or is Mautic able to send mails and handle bounces on its own now?