Ralf Hildebrandt: > > 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). > > You mean they would clutter the queue?
Massively. There is no point in retrying the probe because the
sender may never come back (address verification is a form of
greylisting).
Wietse
