Re: SPF and bouncing

Long ago, Nostradamus foresaw that on Apr 3, Michael Deutschmann would write:

> This is still bad for that server, as the deadletter archive will grow
> without bound unless an operator checks it from time to time.  If you
> just archive to /dev/null, you create the blackhole issue where someone
> might never know they mistyped an address.

If you don't accept DSNs, you don't get notified about mistyped
addresses.  There is logically no way around that.  If you don't send
a DSN they don't find out either.  So yes, rejected DSNs go into 
a black hole or rotated log.