You know that a message came from a mailing list because you have your
list of IPs or DKIM signatures of lists you trust.
Except that was not stated or, really, even implied in the text of the
message I was replying to. Rather, something like that seemed to be taken as
an assumption, but without any clear foundation.
Well, OK, but it's still true.
ARC deals with the problem that most list software forwards everything
with a subscriber's address on the From: line and does a lousy job of
spam filtering.
Forgive me but I believe misbehavior by mailing lists has never been
meaningfully documented for this work. Quite the contrary.
I believe that Brandon has specifically said that Gmail sees this problem
and that is why whitelisting mail from mailing lists isn't adequate.
Regards,
John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly
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