>> I've said for years that lists should sign
>> their mail with their own DKIM keys, and recipients should look at
>> those list signatures to filter the mail.
>
> I'm not even sure that's necessary, but of course it can't hurt. Indeed, right
> now, with the exception of IETF lists, having a signature makes the odds it's
> spam more, not less, likely.
I think that depends on your mail stream. Google signs all their mail
including gmail and hosted domains, and that's a big chunk of the mail I
get. Yahoo signs all theirs, too.
The overwhelming majority of list spam I get is from Google. All with
nice quthentic DKIM signatures.
Ned
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