Splitting based on different Maildir* sources?

[Chris Shenton <chris@shenton.org>]

My MTA is qmail and it files my mail in to ~/Maildir/* and this works
fine with a source specified like:

(setq  mail-sources '((maildir	:plugged	t)
                      ;more sources elided
)) 

I've been using DCC (dccproc client) to check for spammy mail, tag it
with a line, then use a split-fancy rule like:

	("X-DCC-.*-Metrics"	"Body=many"		"in.dcc-body-many")
	("X-DCC-.*-Metrics"	"Fuz[12]=many"		"in.dcc-body-many")

to file them into a spammy Gnus group.


Now I'm trying to use dccproc to file them into a totally separate
Maildir so Gnus doesn't have to file them.  For those of you who care
I do it like the following.  In ~/.qmail:

| /var/qmail/bin/condredirect chris-dccspam /bin/sh -c '! /usr/local/bin/dccproc -c CMN,10 -o /dev/null -w /home/chris/.dcc/whiteclnt'
./Maildir/

In ~/.qmail-dccspam:

./Maildir-dccspam/


But if I tell gnus to get it by specifying a source like:

  (maildir :path "/home/chris/Maildir-dccspam/")

Then it will be slurped in like the rest of my mail and split into the
same groups as the rest.  

Is there a way to file news from this /Maildir-dccspam/ into a
separate group or hierarchy than all the rest of the mail?

Thanks.