[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 gdt):

 It would seem straightforward to just not remove the original DKIM header.
 I get, or used to get, vast amounts of list mail that has DKIM from the
 original sender, which doesn't validate.

 As I understand things, google is basically saying "it's 2025; if you are
 emitting mail without DKIM you are suspicious" and as much as I don't like
 google setting rules for the world, they aren't really wrong in this case.
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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/3011#comment:27>
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