John Levine wrote:
Not to reignite the usual spam argument, but it is (unfortunately in
this case) not 1988 or even 1998 any more. When upwards of 90% of all
mail is spam, keeping mail usable is at least as dependent on limiting
the spam that shows up in people's mailboxes as delivering the trickle
of good mail.
deleting mail based on bogus criteria is not keeping mail usable. it's
Real life spam filters use metrics and tune to the actual behavior of
mailers. If most of the mail that comes from domains with AAAA and no
MX is spam, they'll tune for that, and it won't be a mistake.
yes it will. partially because the behavior of one domain is generally
independent of that of another, partially because the volume of mail
produced by such domains is largely independent of the behavior of any
single domain, and partially because spammers (being a smaller
population) will adapt more quickly to avoid getting trapped by this
For the forseeable future, most such mail will be from zombies, and it'll all
maybe the zombies are the ones who are using statistics inappropriately
to decide how to filter mail.
people need to stop defending such stupidity.
IETF mailing list