IPv6 isn't SMTP

[LarrySheldon at cox.net (Larry Sheldon)]

On 3/25/2014 11:18 PM, John Levine wrote:
>> 3.  Arguing about IPv6 in the context of requirements upon SMTP connections is playing that uncomfortable game with
>> one?s own combat boots.  And not particularly productive.
>
> If you can figure out how to do effective spam filtering without
> looking at the IP addresses from which mail arrives, you will be in a
> position to make a whole lot of money.
>
> But, as always, I'm not holding my breath.

Is spam fighting really about SMTP?  Or is it about abuse of the 
transport layer by (among other things) the SMTP?


-- 
Requiescas in pace o email           Two identifying characteristics
                                         of System Administrators:
Ex turpi causa non oritur actio      Infallibility, and the ability to
                                         learn from their mistakes.
                                           (Adapted from Stephen Pinker)