[Asrg] the SPF flame war, round 47,986

[John Levine]

If you guys want to argue about SPF, please at least keep the
thread separate from the BCP discussion so we can ignore it
more easily.

R's,
John


>> I'm well aware of SPF (and DKIM, and SenderID).  Whatever their
>> theoretical merits, I don't consider them worthy of serious
>> operational consideration, as spammers/phishers already have the
>> ability to render them moot whenever it pleases them to do so.
>
>For domains I trust (including all banks I do business with), I use
>SPF to allow stuff they send me to bypass spam filters.  That enables
>those filters to be much stronger for stuff that looks like bank
>messages.
>
>How would you suggest a spammer can render that moot?