I've moved some more domains over to my new server that I've been building with
your assistance. :D
While I get the configuration finalized, I'd like to send temporary failures,
rather than permanent failures, so that I can alter my configuration and have
the sending server retry.
I only have filters that result in 550s - mostly for spam-control measures.
Is it possible to reduce the severity of an invalid user, so that I get the
chance to correct any remaining configuration problems, rather than just
rejecting the mail entirely?