On 7/14/2020 1:17 PM, Doug Foster wrote:
Without another way to distinguish good MLMs from bad guys, I do not
understand how rearranging headers adds anything other than obfuscation.
I'll claim that this change does not meaningful change any of the threat
vectors or protections against them that are currently in place.
Note, for example, that we already have mailing lists disabling DMARC
protection on the From field, in a way that distorts the original
information but actually also still retains it. There do not seem to be
any complaints about the handling resulting from such mail.
Rather, this proposal cleans up the email human factors while retaining
the intended domain name protection.
d/
ps. I was really struck by being pointed to the DomainKeys RFC and
re-discovering that it actually specified the use of 822.sender for
exactly the use I've proposed. I'd completely forgotten that Delaney
did that.
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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