On Dec 4, 2006, at 2:59 PM, Stuart D. Gathman wrote:
My system depends on extensive whitelists and blacklists. I can't
use the domain whitelist for a *message* without SPF PASS (because
the message might be forged), and I can't blacklist a *domain*
without SPF PASS
(because the message might be forged and not actually from that
domain).
That's technically true, but when do legitimate senders forge
blacklisted domains?
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