Moving SPAM on the server-side / ifspamh or procmail?

[DiScDuCe]

After doing a lot of searching around the forums and atomicturtle and google I have many interesting attempts for configuring qmail to deliver already classified SPAM by spamassassin (X-Spam-Status= yes), but none of them actually integrated properly or finished the scripting (or just skipped huge step in order to complete the task)

Has anybody come up with a complete solution globally or domain / server side?

Looked into:
qmail-scanner + gamera
maildrop + .mailfilter
procmail hacks
ifspamh + user-spam | .Maildir/.spam
etc....

all of which work in colloboration with the .qmail and like files (i.e. .qmail-spam)

The end result should be an IMAP folder that could be accessed through IMP if you would like to view your SPAM e-mails (marks as such by spamassassin).

Any thoughts on this subject would be much appreciated.

Thanks in advance...