Re: [dmarc-ietf] From: rewriting, was Email standard revision

"Kurt Andersen (b)" <kboth@drkurt.com> Mon, 02 December 2019 15:56 UTC

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From: "Kurt Andersen (b)" <kboth@drkurt.com>
Date: Mon, 2 Dec 2019 07:56:37 -0800
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To: Dave Crocker <dcrocker@gmail.com>
Cc: Alessandro Vesely <vesely@tana.it>, dmarc-ietf <dmarc@ietf.org>, John C Klensin <john@jck.com>
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Subject: Re: [dmarc-ietf] From: rewriting, was Email standard revision
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There's also already RFC7960 which expands upon 5598 with specific
reference to DMARC's impact.

On Sat, Nov 30, 2019 at 7:37 AM Dave Crocker <dcrocker@gmail.com> wrote:

> On 11/30/2019 4:40 AM, Alessandro Vesely wrote:
>
> Let me quote this from the ietf-smtp mailing list:
>
> On Sat 30/Nov/2019 00:12:53 +0100 John C Klensin wrote:
>
> --On Friday, 29 November, 2019 11:16 -0600 Pete Resnick wrote:
> [...]
>
> Even the "From: rewriting" issue is
> a gatewaying issue, not a message format issue per se.
>
> That is less clear.  It fits into the gray area that has existed
> for years about just exactly what a mailing list exploder /
> redistribution system really is.
>
>
> This view is reasonable only if one re-defines accepted terminology and ignores some basic technical facts.
>
> A user specifies a recipient address. The message is posted and then
> delivered to that address.
>
> That simple process describes basic email handling, and has been the
> accepted view for roughly 40 years.
>
> And it describes the /first/ leg of a message sent /through/ a mailing
> list.
>
> For the second leg, a bot at that address /re-/posts the message.  In
> simple, formal email technical terms, this is an entirely new email
> transaction.
>
> It isn't 'gatewaying' per se, since that term applies to transit between
> heterogeneous systems, but it /is/ a higher-level process.
>
> If only we had a document that discussed all this coherently, defined
> basic terminology, and had undergone IETF review and approval.  If only we
> had RFC 5598...
>
>
> d/
>
> --
> Dave Crocker
> Brandenburg InternetWorkingbbiw.net
>
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