qconfirm: manual confirmation-only mode?

my anti-spam system is a simple setup, easy to operate.  messages accepted by
the smtp-daemon are bayesian-classified (bogofilter).  qconfirm deals with
everything going past this stage.  a script combining qconfirm and qmHandle (a
qmail queue lister) gives me a neat listing of pending senders.

problem:  very few spammers use valid sender emails.  with nearly all valid
sender (-domains) in .qconfirm/ok/, qconfirm-check causes a lot of
unneccessary confirmations getting sent, because they will end up as bounces
qconfirm- return can't handle if they aren't in QSBMF (qmails bounce format).

i would like qconfirm to send confirmation notes only to a few senders i
manually select, or to leave out the confirmation business alltogether.  the
way things are at present (qconfirm version 0.14.2), qconfirm acts as a
special add-on to the qmail-queue:  it prevents messages from certain senders
from getting delivered, leaving them in the queue.  only few of them are
automatically removed by qconfirm-return, all the better.  i don't know about
other users, but since qconfirm-check-mid okays messages with my message-IDs,
the listing contains spammers almost exclusively, and my inbox contains the
many bounces!

i like this "feature", because manual confirmation is very easy (using a bash
completer), but i'd like to avoid the useless confirmation emails.  could
qconfirm-check have an option `-M' (for _M_anual) that leaves all confirming
to the user (qconfirm "ac", "dr", "sn", "bo" commands)?  can i write a little
program as an argument to qconfirm-check that does this?  what exit code is
needed?  the documentation is unclear to me for this type of application.

  clemens