[Pkg-mailman-hackers] Bug#1093904: mailman3: Cannot set DMARC mitigations from postorius page

[Peter Chubb]

Package: mailman3
Version: 3.3.8-3.2
Severity: normal

Dear Maintainer,

I tried to set the DMARC mitigations from the web page.
..../postorius/lists/<list-name>/settings/dmarc_mitigations
Every time I hit commit I see the message:
    An error occurred: Unknown attribute: dmarc_addresses 
in a pinksh box at the top of the page.


-- System Information:
Debian Release: trixie/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.8-cloud-amd64 (SMP w/1 CPU thread; PREEMPT)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages mailman3 depends on:
ii  cron [cron-daemon]          3.0pl1-189
ii  dbconfig-sqlite3            2.0.24
ii  debconf [debconf-2.0]       1.5.89
ii  init-system-helpers         1.68
ii  logrotate                   3.22.0-1
ii  python3                     3.13.1-2
ii  python3-aiosmtpd            1.4.6-3
ii  python3-alembic             1.13.2-4
ii  python3-authheaders         0.16.3-1
ii  python3-authres             1.2.0-3
ii  python3-click               8.1.8-1
ii  python3-dateutil            2.9.0-3
ii  python3-dnspython           2.7.0-1
ii  python3-falcon              3.1.1-5
ii  python3-flufl.bounce        4.0-4
ii  python3-flufl.i18n          5.0.2-2
ii  python3-flufl.lock          8.1.0-2
ii  python3-gunicorn            23.0.0-1
ii  python3-lazr.config         3.0-1
ii  python3-passlib             1.7.4-4
ii  python3-psycopg2            2.9.10-1
ii  python3-public              4.1.0-2
ii  python3-requests            2.32.3+dfsg-1
ii  python3-sqlalchemy          2.0.32+ds1-1
ii  python3-zope.component      6.0-1
ii  python3-zope.configuration  6.0-1
ii  python3-zope.event          5.0-0.1
ii  python3-zope.interface      7.2-1
ii  ucf                         3.0046

Versions of packages mailman3 recommends:
ii  exim4-daemon-heavy [mail-transport-agent]  4.98-3

Versions of packages mailman3 suggests:
pn  anacron             <none>
ii  lynx [www-browser]  2.9.2-1
pn  mailman3-doc        <none>
ii  postgresql          17+267

-- debconf information excluded