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Message-ID: <20040618022515.GC4389@jfet.org>
From: rsw at jfet.org (Riad S. Wahby)
Subject: Re: Spam Solution
Alavan <alavan@...geatech.com> wrote:
> It seems to me that if we make all MTA's register somehow (both SMTP and
> POST), this would eliminate the hijacked machine as spambot phenomenon. We
> already have MX records for SMTP, but a lot of providers use different
> machines to receive (via SMTP) and send mail (POST). So, maybe a new DNS
> record is introduced for POST. Your machine(s) could do both or not. When
> your server goes to accept a message, it looks to see if the IP of the
> sending machine is listed in this new DNS record. If not, return a 5XX
> error.
Uhhh... isn't this just SPF?
--
Riad S. Wahby
rsw@...t.org
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