Problem with deletemailbox

[Gary Smith]

> 
> localhost.localdomain> lm user/cyrus@
> user/cyrus@ (\HasNoChildren)
> localhost.localdomain> sam user/cyrus@ cyrus x
> localhost.localdomain> dm user/cyrus@
> deletemailbox: Operation is not supported on mailbox
> localhost.localdomain>

I guess reading the FAQ a little harder would have helped.  Instead of adding x to the permissions, adding all allowed the deletion.