Batched SMTP ?

Hi,

I have one or two domains here that I know will be down for a week or
so. Want to remove their messages from the main queue (there's 2000+
of them) and use the "outgoing batched smtp" example in 43.10 of the
documentation to spool it somewhere else. When the domains comes back
online, would "exim -bS < file" get the mail moving again (after fixing
the config) ? If not, is there another way of moving spooled messages
out of the main queue without doing lots of manual "mv"ing ?

Thanks,
-- pi