This is related to https://gitlab.com/mailman/postorius/-/issues/590 The bug is actually in django-mailman3. In https://gitlab.com/mailman/django-mailman3/-/tree/master/django_mailman3/templates/account we are missing the file password_reset_done.html (see https://codeberg.org/allauth/django-allauth/src/branch/main/allauth/templates/account/password_reset_done.html)