Re: [Asrg] Anti-spam laws do work, FYI. There's proof.

[Seth Breidbart <sethb at panix.com>]

"Larry Seltzer" <larry at larryseltzer.com> wrote:

>>>Spammers' primary methodology is using hijacked (infected) PCs as spam
> zombies. All you'd know is the id of the hijacked PC, which you already
> trivially knew.
>
> Except that SPF would stop all of these zombied systems. None of the
> mail from them would authenticate. In a world where SPF is followed,
> none of the mail is accepted.

Except it wouldn't: spammer registers throwaway domains, points their
SPF records at the zombies.  (It gets easier to block, by seeing which
nameservers provide the SPF records, but it's still an arms race.)

Seth

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