moderated Re: Evaluating turning on DMARC #update


Konstantin Ryabitsev
 

On Thu, Sep 16, 2021 at 08:30:41AM -0700, Shal Farley wrote:
- don't modify signed headers (Subject, for example)
- don't modify the message body (e.g. don't append "Groups.io Links")

That's all it takes.
Understood. But that is a very big "all".

It would largely defeat the "group" concept, turning Groups.io into a mere
mail reflector.
So, give folks an option:

1. accept rewritten From: that will throw away original headers (and use ARC,
if that's the way you want to go); a lot of people don't care about
From: anyway, unless they are doing very specific things
2. preserve all original headers and message body and fullfill DMARC
policies of the original sender; most people wouldn't care for that, except
some people who really, REALLY care

This can easily be a per-list setting.

-K

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