This is GNU Mailman, a mailing list management system. This metapackage
 depends on all components of the full Mailman3 suite:
 .
  * mailman3: The core Mailman3 delivery engine
  * mailman3-web: Django project integrating Mailman3 postorius and hyperkitty
  * python3-mailman-hyperkitty: Mailman3 server plugin for Hyperkitty archiver
            Installed Size: 49.2 kB
            
            Architectures:  all