cyrus-imap 's permission?

[Chowroc at 163.com]

After installed cyrus-imap, I run:
# cyradm -u cyrus localhost
login into the cyrus admin shell, but when I run:
localhost.localdomain> > cm user.cu01
I get:
createmailbox: permission denied

The I create another user by saslpasswd2, I can also login as that user too! But still don't have the permission.

This may means my cyrus system account I have created at installing time has no effect. But where is the concrete problem? How to solve it?

Is there anyone can help me?

thanks.
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