Hello Hector,
At 21:35 04/01/26 -0500, Hector Santos wrote:
What I did not get 100% clear about SPF, is whether it works from a central
authority (database) concept. Its documentation seems to indicate both (a
central and your own). The author should clarify this more.
Please tell him directly. I don't have any direct contacts.
In any case, in my research and testing of the various DNS lookup proposals,
the only "current" benefit I see from all the anti-spam DNS based lookup
proposals is checking spoofs against your own domains.
That's the initial benefit, as I mentioned.
If you begin to
check other domains, the DNS overhead skyrockets. It was pointed out to me
by the DMP author that this is a function of your DNS setup. I am not too
sure about this. But I don't pretend to be an DNS expect. All I know is
that looking up an unknown domain (which is what a majority of the spammers
are) yields a long initial lookup delay.
I'm no DNS expert either. But giving the spammers some delay may be a
nice side effect :-).
Regards, Martin.