Nobody is unsubscribed

Raimo Niskanen ratmapper@REDACTED
Sat Oct 26 08:57:20 CEST 2019

It is mainly "the big ones" that have been affected by stricter DMARC

When a subscriber sending from e.g Yahoo gets received by Gmail then Gmail
rejects that message since Yahoo's DMARC policy says so (also vice versa).
So the list gets a bounce and eventually blocks the Gmail subscriber, if
enough in a row happens to send with strict DMARC policies.

So for some it has worked, some gets an annoying list probe every now and
then, some do not get many posts, but the final nail in the coffin was
Ericsson (Erlang/OTP's home corporation) that tightened its DMARC policy
and at the same time told us to get our act together and stop sending
"unhygienic e-mail".

All the best
/ Raimo

Den fre 25 okt. 2019 16:58Chris Rempel <csrl@REDACTED> skrev:

> Not having the subject contain [erlang-questions] or some other obvious
> indicator is quite unfortunate.  I guess many people were affected by not
> being DMARC compliant?  It seems to have been working just fine for quite
> some time... ie it "works for me" as it was.
> That said, thanks for maintaining the list, and keeping it going.  It is a
> most useful resource.
> Chris
> *Sent:* Friday, October 25, 2019 at 7:38 AM
> *From:* "Raimo Niskanen" <ratmapper@REDACTED>
> *To:* erlang-questions@REDACTED
> *Subject:* Re: Nobody is unsubscribed
> To achieve DMARC compliance we have stopped changing the Subject:
> field and no longer add the mailing list footer to the messages.
> This is because From: Subject: and mail body among other fields are
> often DKIM signed, so if we should change them we would not pass DKIM
> signature check and thereby not be DMARC compliant.
> Sorry for the inconvenience, we do not make the rules...
> / Raimo Niskanen
> On Fri, Oct 25, 2019 at 3:23 PM Raimo Niskanen <ratmapper@REDACTED>
> wrote:
> >
> > The reason we changed mailing list servers was to get better DMARC and
> > DKIM compliance. This is a test post for us to inspect its headers...
> > --
> > Raimo Niskanen
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