[COFF] OT: Any DKIM People Out There?

[Steffen Nurpmeso]

Steffen Nurpmeso wrote in
 <20250821124141.BEJr5YJE at steffen%sdaoden.eu>:
 |Warren Toomey via COFF wrote in
 | <aKanpE22V+eay62r at minnie.tuhs.org>:
 ||Hi all, I've had a question/issue raised with DKIM on the TUHS/COFF \
 ||mailing
 ||lists from a subscriber. I'm running Mailman3 and I'm a DKIM newbie. They
 ||say:
 ...
 ||I'd be very happy to have someone/some people review my mailman3, postfix
 ||and rspamd configuration and suggest changes.
 ...
 |But.  Mailman3 config is at [1]
 |
 |  - Remove (or rename) old DKIM headers [1]: not so important, but
 |    good.  Because.
 |      remove_dkim_headers: yes

So that seems to be done.

  ...
 |  - Perform the mitigations [2].  Ensure to *always* mitigate and
 |    change the From: line to those "via" style things.

That not.  Please let me try post one message one more time, as
i normally filter DKIM etc very heavily, because of all the noise.

 |      dmarc_mitigate_unconditionally
 |      dmarc_mitigate_action: munge_from
 |
 |  [1] https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/con\
 |  fig/docs/config.html
 |  [2] https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/han\
 |  dlers/docs/dmarc-mitigations.html
 |
 |In general it can only be "mitigate, mitigate, mitigate" (think
 |Ballmers "Developers! Developers! Developers! -- just like that!),
 |and unconditionally so, because why have all the DNS lookups and
 |all the noise for nothing, just give anyone the same appearance.
 ...

Sorry for that noise.

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)