Re: Trouble with Sender Authentication

[John Levine <johnl@xxxxxxxx>]

>> Could someone kindly point me to workable CSV library so that I
>> could provide Doug with an example of using CSV to generate highier
>> amount of amplification than his assertions about SPF?

It'll be a challenge.  CSV is a single DNS query per message, so the
only things you get to use for amplification are delegation and
CNAMEs.

I do agree that the DNS threat from SPF is not qualitatively worse
than what we already put up with for CNAMEs.

R's,
John