renaming a mailbox fails

[Marten Lehmann]

Hello,

within cyradm I'm trying to rename a folder.

My goal would be to rename a mailbox from

user/test at test.de

to

backup/2006-10-17/test at test.de-1 or
backup/2006-10-17/1-test at test.de

But renaming always fails, even with really simple renames:

rename user/test at test.de user/test2 at test.de

renamemailbox: Operation is not supported on mailbox

What am I doing wrong?

 > lam user/test at test.de
test at test.de lrswipcda

Is any right missing?

Regards
Marten