cleaning up cyrus

[Klaus Vink Slott]

during testing kolab I have bootstrapped kolab several times and created 
several test users. I now see that mailboxes is still exsisting 
in /var/spool/imap/domain/....../user/ for previus users created before 
current bootstrap

Allthough I am new to Kolab I have used cyrus for many years. So my question 
is: Can I possibly log in to cyrus using something like 
cyradm --user [cyrus|kolab|whatever] localhost 
and remove uassigned mailboxes?

Or is there any other preferred way to cleanup?
-- 
Regards
Klaus Vink Slott