rogt3...@proinbox.com:
>
> On Fri, Jan 23, 2015, at 03:41 AM, Wietse Venema wrote:
> > rogt3...@proinbox.com:
> > > Hi,
> > >
> > > I'm setting up a postscreen instance in a multi_instance setup.
> > >
> > > I've read the docs on the Deep Protocol Tests stage. The tests
> > > seem helpful but for course there's the fact that on a PASS of
> > > good-to-this-point mail, it "waits for the client to disconnect.
> > > The next time the client connects it will be allowed to talk to a
> > > Postfix SMTP server process to deliver its mail."
> >
> > If you are worried about delays, then do not turn on the "deep
> > protocol" tests.
>
> As documented, if Deep Protocol tests are used there'll be a delay.
>
> That's not the question I asked.
You have no control over how often remote senders retry deliveries,
nor do you control whether they will retry from the same IP address.
Some providers will retry from a random IP address in a large pool,
and those will never get past postscreen's deep protocol tests.
When you ask "what is the best way to shoot myself into the foot",
then my answer is "don't do that", even if you did not ask for that
answer.
Wietse
