Mika Ilmaranta:
> On 04/23/2014 06:35 PM, Wietse Venema wrote:
> >> 2) I don't see how this would be any different for sender verify probes.
> >
> > The number of sender domains is larger than your pool of recipient
> > domains, and therefore, tracking the sender domains would require
> > more memory.
>
> This is only difference in definitions of infinity. Sender verify is
> infinity * n and recipient verify is infinity * x, where n > x, so both
> are really infinite.
The discussion is about tracking per-DOMAIN counters not per-ADDRESS.
The number of your customer DOMAINS (receivers) is "finite" compared
to the rest of the Internet DOMAINS (senders).
Anyway, after four days of testing and development I recommend that
you adopt my first patch for now. Maintaining robust counters for
all pending verify requests is not simple and will take more time.
Wietse
