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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

Michael Richardson <mcr+ietf@sandelman.ca> Sat, 17 December 2016 20:19 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: IETF Disgust List <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> <5EF6F271-1CF7-4981-8E83-C7A7B49DB8F2@gmail.com> <CDE8A76C-ECD7-4370-9823-3C78144A8850@nohats.ca> <24005.1481827604@obiwan.sandelman.ca> <alpine.LRH.2.20.1612151513060.15183@bofh.nohats.ca> <20161216202704.glz5vgu773gqqgvm@thunk.org> <20161216203905.GD13486@mournblade.imrryr.org> <01Q8KHVOKE2C011H9Q@mauve.mrochek.com> <m21sx6u8sb.wl-randy@psg.com> <6D2E8F8E-1B02-46EA-B202-D23E5385CFF5@gmail.com> <20161217151451.hx5co6mjqmi2jakg@thunk.org>
Comments: In-reply-to "Theodore Ts'o" <tytso@mit.edu> message dated "Sat, 17 Dec 2016 10:14:51 -0500."
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Date: Sat, 17 Dec 2016 15:19:45 -0500
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Theodore Ts'o <tytso@mit.edu> wrote:
    > Yeah, it's the "sometimes mail gets lost" problem which is the main
    > issue.  So it might actually be better to have the mailing list
    > software refuse to accept a mailing list posting from a domain with a
    > DMARC record, and it can be bounced back to the sender immediately
    > with a "sorry, try again using some e-mail address that does not have
    > DMARC support".

I really think that this is the right answer for our community.
The DMARC policy is not to forward, and we should respect it.

When ARC gets standardized, we should implement it.


--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-

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