Re: [exim] Sender verify at extreme

Jethro R Binks wrote:
> But the cost is borne by those sender domains, requiring resources to
> deal with your callout.
>

The cost is minimal compared to the benefit. I get a lot of customers
whose domains had been spoofed and when they move to my filtering
service which is verify friendly the spammers stop spoofing the domains.
If everyone stopped using SAV there would be a lot more spoofing going
on. The load generated is minimal and the load reduction is significant.