On 19 May 2010, John Levine wrote:
If you already know what lists you're subscribed to, why would you do
anything other than accept all the mail from the lists?
True, vanity domains likely won't bother to treat "rejectable"
differently than "except-mlist". The only difference is in a case that
shouldn't happen.
But the advantage of "except-mlist" to vanity domains is that *many* more
senders are eligible to publish it. They would otherwise use "unknown".
With the status quo, vanity domains can only protect themselves from
forgeries of:
1. The minority of senders who truly send to no mailing lists
2. Senders who recklessly assume that "all" is universally treated
as "except-mlist"
---- Michael Deutschmann <michael(_at_)talamasca(_dot_)ocis(_dot_)net>
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