[SAC] [OSGeo] #3011: Write recommendation for mailing list configuration regarding DKIM/DMARC/SPF

[OSGeo]

#3011: Write recommendation for mailing list configuration regarding
DKIM/DMARC/SPF
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 Reporter:  strk              |       Owner:  sac@…
     Type:  task              |      Status:  new
 Priority:  normal            |   Milestone:  Unplanned
Component:  SysAdmin/Mailman  |  Resolution:
 Keywords:  dkim, spf, dmarc  |
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Comment (by lnicola):

 > List-Foo headers seem to be pretty clearly a standard, and if someone
 and their MUA can't deal with that, I don't think we should make everyone
 suffer from forged From: lines because of it.

 I opened a ticket with Fastmail for that. But the solution is probably to
 add `List-Unsubscribe-Post` and sign the two headers with DKIM. I'm not
 sure how hard that is to set up.

 > I think the third option is best.

 That's my preference too.
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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/3011#comment:9>
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