Robert Schetterer:
> Am 29.09.2014 um 13:45 schrieb Noel Jones:
> > Is smtp_fallback_relay even used with a verification probe? I would
> > expect the probe to fail before it tries the fallback.
>
> hm...
>
> http://www.postfix.org/ADDRESS_VERIFICATION_README.html
>
> By default, Postfix sends address verification probe messages via the
> same route as regular mail,
Indeed. For maximal realism, probe delivery is intentionally the
same as real mail delivery.
The difference is that probes are never delivered (SMTP interruptus),
and that failed probes are never returned to the mail queue. There
is no reason to keep failed probes in the mail queue (and it would
be unwise).
Wietse
