On 4/13/2023 11:14 AM, Barry Leiba wrote:
There's no need for a signal here: the MLM can simply check the
sending domain's DMARC policy when a new post comes in, and
preemptively reject it if the policy is "reject". The IETF
considered doing that and ruled it out because it would mean that
users with yahoo.com addresses (and others) could then not
participate in IETF mailing lists without changing addresses.
Code change where? In the MLS or some post scripting code?
I think that was the wrong decision, but we decided on the ugly
"from" alteration instead.
Code change anyway. No way around this code change - a direct MLS
change or MLM low code script add-on/change. My MLS checks it's
entry points for restrictive DMARC domain; subscription and submissions.
I still think that outright refusal of posts from p=reject domains
is a good approach and I wish it were used more, but most MLMs that
are willing to put in a change to address this seems to prefer not
to punish the sending domains users for the excesses of the domain
management.
+1.
It can only be considered more with key cogs support and promotion to
their industry/trade support peers. Iow, Editors SHOULD
support/champion their RFC work like ATPS and DMARC. Many ideas and
concepts from DSAP merged from WG work. DMARC is a collection of all
the past work with reporting. But it needs DSAP policy ideas and ATPS
concept to help bring some steady state to transporters. DMARCbis p=
should be describing the failure handling not restricting the
evaluation of a failure. This will provide the tools to define the
nine possible 1st vs 3rd party signers. MLS needs to support this.
The MLM operators need to support it too. Of course, the MLS/MLM can
use Local Policy to override at its own risk especially when DMARCBis
offers nothing to resolve this problem. But it can easily fit in too
and see where it goes.
--
Hector Santos,
https://santronics.com
https://winserver.com
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