I installed the mautic-amazon-ses this plugin to enable Amazon SES integration in Mautic 5.1.1 running in Docker (mautic:5.1.1-apache). After installing the plugin, the ses+api schema was still not recognized, and I had to configure the SES transport directly in the local.php configuration file. Despite this, email sending fails with the following error:

Unknown DSN scheme. Please make sure the mailer DSN is configured properly.

Steps to Reproduce:

Actual Behavior: An error is thrown indicating that the ses+api schema is not recognized.

Environment Details:

Mautic Version: 5.1.1

Request for Assistance:

Is this plugin fully compatible with Mautic 5.1.1 Docker images (mautic:5.1.1-apache)?
Are there additional steps required to register the ses+api schema?
If there are known issues with this version of Mautic, is there a workaround or an upcoming fix?