Maildir and DSPam problems



I’m trying to install DSpam, and I’m confused. Each of my mailboxes has a different Maildir. I’m not sure if this is how all ISPs do it (I would assume so), or not.

When I create a .corpusfed folder in ~/Maildir, it doesn’t show up in any of my mailboxes. The shell account I use to access all of my domains doesn’t use an e-mail address.

Do I have to put these folders into every users Maildir individually?