public namespace quota

[Chris]

All,

sorry, I've to ask again. I'm trying to define quotas for public namespace
subfolders:

	ns=public/
		- DepartmentA - 50G
		- DepartmentB - 500M
		- DepartmentC - 10G

public/ shouldn't have a limit. public/DepartmentA is independent
of B and C.

Is this possible with dovecot?

I've added the following rules

	quota = maildir:User quota
	quota2 = maildir:Public quota:ns=public/
	quota2_rule = *:storage=10M
	quota2_rule2 = DepartmentA:storage=+50M

but then only 10M is shown for DepartmentA in Thunderbird.
I'm using Maildir++. maildirsize is only created in public/ toplevel, not
in public/DepartmentA.

Public-subfolders are owned by vmail system-user. Different virtual users'
ACLs are set (and working).

Any help is appreciated!

- Chris