renaming a mailbox fails

[Marten Lehmann]

Hello,

>>>Set 'allowusermoves' to '1' in imapd.conf?
>>
>>However, I still get "renamemailbox: Operation is not supported on
>>mailbox" as soon as I try to rename out of the "user/" prefix. Is there
> 
> Did you restart cyrus after changing the config?

yes. Renaming users works, but only within "user/", e.g. from 
user/test at test.de to user/test2 at domain.de.

But what doesn't work is to rename it completely like from 
user/test at test.de to backup/test at test.de.

Regards
Marten