Copy the settings file from /opt/mailman/web/ in the host system which is supposed to be mounted at /opt/mailman-web-data/ in the container.
============================= Mailman Suite example project ============================= This example project is meant to give you a quick development setup for using both Hyperkitty and Postorius in a single Django instance, providing you a web interface for Mailman 3 configuration and web access to the archives.