Nobody is unsubscribed

Joe Harrison joe@REDACTED
Fri Nov 1 16:25:11 CET 2019

Thanks for doing all of this, regardless.

There's no perfect way to do mailing lists in a DMARC/DKIM/SPF compliant
way that doesn't break some client's "From:" field, subject line, or
"Reply:" button in some way, but this seems like the least bad option.

I hope my emails make it through to the list now ^_^

OT: Be careful of organisations' web contact forms which ask for your
email address. Sometimes their web servers generate an email from the
form using your email address as the "From:" address, which will break a
lot of DKIM/DMARC/SPF stuff.
I know of at least one local authority (council) website in the UK which
is guilty of this.

- Joe

On 26/10/2019 07:57, Raimo Niskanen wrote:
> It is mainly "the big ones" that have been affected by stricter DMARC
> policies.
> 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
> <mailto: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
>     <mailto:ratmapper@REDACTED>>
>     *To:* erlang-questions@REDACTED <mailto: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
>     <mailto: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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