Re: Some thoughts about spam and SPF

David Brodbeck wrote:

> Seth Goodman wrote:
>
> >  I think that Stuart is right, you need an SMTP AUTH service
> > that prevents domain forgery.
> People keep saying this, but so far no one has been able to name such 
> a service.  There are plenty of places out there that do SMTP AUTH, 
> but are there any that actually prevent cross-customer forgery?  If 
> not, there's no way anyone who doesn't run their own mail server can 
> use -all.
Actually, I wrote that wrong.  You can use -all...but you can't use 
+anything.  You're stuck in the limbo-land of the "?" operator.