Re: DMARC methods in mailman --- [LEDE-DEV] DMARC related mass bounces / disabled subscriptions (fwd) Jo-Philipp Wich: [LEDE-DEV] DMARC related mass bounces / disabled subscriptions

John C Klensin <john-ietf@jck.com> Sun, 18 December 2016 20:21 UTC

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Date: Sun, 18 Dec 2016 15:21:08 -0500
From: John C Klensin <john-ietf@jck.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, ietf@ietf.org
Subject: Re: DMARC methods in mailman --- [LEDE-DEV] DMARC related mass bounces / disabled subscriptions (fwd) Jo-Philipp Wich: [LEDE-DEV] DMARC related mass bounces / disabled subscriptions
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References: <25431.1481725548@obiwan.sandelman.ca> <6.2.5.6.2.20161217022643.0e830e78@elandnews.com> <60C5B0E2-95E6-4AE5-87FA-5C438F146181@fugue.com> <6.2.5.6.2.20161217081922.0b4350e0@elandnews.com> <A087FD45F16AB4DEB6C520F0@PSB> <6.2.5.6.2.20161218010701.0c297120@elandnews.com> <5aa87706-5dbe-e984-e5fa-ccc9168c51ca@gmail.com>
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--On Monday, 19 December, 2016 08:20 +1300 Brian E Carpenter
<brian.e.carpenter@gmail.com> wrote:

> On 18/12/2016 23:15, S Moonesamy wrote:
> ...
>> Yes.  We might end up having to consider whether to attribute 
>> semantics to the <display-name> as a way to solve the
>> problem.  Let's  assume that 20% of IETF mailing list
>> subscribers use a "p=reject"  domain name in the "From:"
>> field and that they are no longer allowed  to post messages
>> to the mailing list because of the policy advertised  by that
>> sending domain.  What should the mailing list moderator do in 
>> response to complaints from those subscribers?
> 
> Send them a canned message stating that the only solution
> available to them is changing to a different From address that
> does not have this issue. What else can they do?

Note that this is very similar to one of the options for an
SMTPUTF8-capable IMAP or POP server to take when the client does
not present itself as able to accept should messages, i.e.,
"there is a message you could receive (with SMTPUTF8 POP/IMAP)
or send (with a different mail provider) if you were running in
a different environment, but, with your current environment, you
lose."

   john