[postgis-users] DMARC config

[Sandro Santilli]

On Thu, Aug 24, 2023 at 10:01:56AM +0200, Sandro Santilli wrote:
> On Wed, Aug 23, 2023 at 08:38:54PM -0400, Greg Troxel wrote:
> > Sandro Santilli <strk at kbt.io> writes:
> > 
> > > On Wed, Aug 16, 2023 at 08:46:08AM +0200, Paolo Cavallini wrote:
> > >> Dear admin,
> > >> the list, as many @osgeo were, is misconfigured for its DMARC. I suggest to
> > >> change one of the settings.
> > >
> > > Hi Paolo, thanks for the heads up.
> > > I've followed Markus Neteler's recipe here:
> > > https://trac.osgeo.org/osgeo/ticket/2475#comment:43
> > >
> > > My understanding is that this should ONLY affect the emails coming
> > > from a domain with DMARC Reject/Quarantine Policy so your reply to
> > > this email might have the From munged while mine might not.
> > >
> > > This mail is sent to postgis-users so we can use it also as a test :)
> > 
> > test failed because your domain does not sign with dkim.
> 
> Test succeeded as it shows From is not changed for me ;)
> But it is incomplete until Paolo replies, I guess.
> 
> > In all seriousness, just configure the list not to modify messages,
> > other than adding List-Foo headers, and the problems all go away.
> 
> I'm actually ok with this change, users might need to update their
> filters but parsing headers should be easier than subject or footer,
> will bring it up for vote on PSC.

Still, I think this should be tested by the reporter as I'm really
flying blind when it comes to DMARC. In particular, I wonder why 
Mailman does not include a "do not modify subject" and "do not add
footer" as options in the dmarc_moderation_action options list.

--strk;