Source: mailman3 Dear Maintainer,
mailman-hyperkitty.cfg [1] contains: api_key: SecretArchiverAPIKey mailman3-web postinst however, checks for this api_key and generates a random one if it has not been changed [2]. This means the default setup for hyperkitty contains mismatched api key, and will not work. mailman3 should generate api_key when writing /etc/mailman3/mailman-hyperkitty.cfg. Then the logic for randomizing the password could be removed from mailman3-web. [1]: https://salsa.debian.org/mailman-team/mailman-hyperkitty/blob/master/mailman-hyperkitty.cfg [2]: https://salsa.debian.org/mailman-team/mailman-suite/blob/master/debian/mailman3-web.postinst#L114-125