On 29/07/18 19:21, RW wrote:
On Sun, 29 Jul 2018 19:00:56 +0100
Dominic Raferd wrote:

On Sun, 29 Jul 2018 at 18:33, RW <rwmailli...@googlemail.com> wrote:

On Sun, 29 Jul 2018 12:28:08 +0200
Antony Stone wrote:
On Sunday 29 July 2018 at 12:17:07, Sebastian Arcus wrote yet
another email that's guaranteed to fail DMARC with a reject when
posted through a mailing list, and consequently I didn't
receive:
​...

​Ditto, and I haven't received (and won't receive) any of his
subsequent postings either (opendmarc is - quite rightly - blocking
them). More strangely, I didn't receive this message (above) except
apparently when quoted in reply by RW.​ Note to OP: when posting to
mailing lists, use a domain that does not have DMARC with p=reject
(and preferably not p=quarantine either).

Actually it's worse than that, the main problem (the last I looked) is
that his DKIM signs some List-* headers which guarantees a DKIM fail
when he posts through a mailing list.

I had no idea that DKIM signing can be such a nightmare. I have disabled all DKIM for the time being until I can get my head around on how to configure it properly - if that is even possible. Thank you for pointing it out - I wasn't aware of the issue.

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