can't create subfolder, plese help

[JOYDEEP]

Dear cyrus experts,

I can create mail boxes as  admin user of cyrus. I have created an user
called aftab. *lm*  shows

user/aftab (\HasNoChildren)

Then  *lam * command shows as below

localhost> lam user/aftab
aftab lrswipcda

Now I configured kmail for the account aftab. But whenever I try to
create folder under this account and
under inbox it says can't create folders. But there is no such problem
when I do the same in kolab cyrus box.

could any one suggest any possible reason of this error ?