On Tue, Apr 12, 2005, George Ou wrote:
On Mon, Apr 11, 2005 at 11:37:05PM -0700, George Ou wrote:
* Start banning all non-SPF compliant domains within a certain
deadline which would effectively make port 25 blocking moot.
Markus Stumpf:
Sorry, this is not how SPF works.
Says who? SPF blocks all hosts that are not registered as SMTP servers in
their domain's authoritative DNS servers. That DOES make blocking consumer
outbound 25 moot.
MTAmark would be right "technology" for this. SPF is not suitable
for this purpose (as Markus explained.)
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