subfolders in public mailboxes

Hello,

I added this to the configuration:

namespace { type = public separator = . prefix = public. location = maildir:/var/mail/public subscriptions = no list = yes }

and I can list maildirs inside these folders correctly. however, I can't see any subfolders.

The issue seems to be that /var/mail/public dir itself is interpreted as a maildir directory.

However, what I'd like to do is to have a bunch of directories inside /var/mail/public and treat them as separate maildirs. (I'd like to use this to make a few existing mailboxes public)

is this possible?

Best regards, Burak