Incoming SMTP in the year 2017 and absence of DKIM
johnl at iecc.com
Fri Dec 1 01:47:47 CST 2017
In article <3d84c686-aa5f-8180-8a37-be77fef949a8 at tnetconsulting.net> you write:
>I would also configure MLMs to forward unknown bounces to the -owner.
>Hopefully the -owner would then feed (a sanitized copy of) the unknown
>bounce type the MLM maintainer(s) to improve said MLM.
I suppose that would make sense for the 0.1% of mailing lists run by
people with the skill and interest to hack on their list software.
>> It's a rathole, it doesn't scale, and it is not a bug that you can
>> send mail to people who you don't already know.
>I wasn't aware that DKIM-ATPS necessitated needing to know who you were
>going to send to.
ATPS was an experiment that failed. Nobody uses it, it didn't scale.
>> If identities were a magic bullet, we'd all be signing with S/MIME.
>I am (and have been for years) a proponent of S/MIME.
I can't help but note the absence of S/MIME signatures on roughly 100%
of all of the messages in this thread.
>(I think we're still talking about how can an intermediate mail server
>be authorized to be part of the SMTP end-to-end mail delivery chain.
>Even if said intermediate mail server is downstream of the sender.)
Yeah, that's what ARC is intended to do.
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