On RHEL 9 and RHEL 9-based , mailman3 is already available on EPEL 9 we have mailman3-3.3.8-3.el9, python-mailman-hyperkitty-1.2.1-2.el9, python-mailman-web-0.0.6-1.el9, python-django-mailman3-1.3.9-1.el9 and mailman3-fedmsg-plugin-schemas-1.0.0-2.el9 , what do I need to enable mailing lists on...