The internal Cyrus "mailbox ID" ought to be unique, but it's not. On the sub folder, remove the cyrus.header file and reconstruct. This will assign a new, unique mailbox ID. Any ideal how they ended up with the same IDs? :wes On 04 Dec 2007, at 20:09, Gabor Gombas wrote: > I'm having problems with replication. sync_client bails out, and > the log > contains: > > Dec 5 02:00:50 mail cyrus/sync_client[6121]: RENAME received NO > response: Rename failed domain!user.foo -> domain!user.foo.bar: > Operation is not supported on mailbox > > Why does sync_client want to rename the user's INBOX to it's own > subfolder? And more importantly, how to fix it? It only happens for a > specific user, other users seem to be unaffected. The problem started > under 2.3.8, now I've upgraded to 2.3.10 (both master & slave) but > that > did not help. ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html