Hi Has any one had any experience in going from 2.3.12p2 to 2.3.16. It appears to work. I can create and delete mailboxes on a 2.3.12p2 or 2.3.16 and it replicates out to the other version. I do get messages on the 2.3.16 server like Mar 26 15:38:28 zysv01 mupdate[31564]: attempt to delete unknown mailbox user.xxaabb Where the mailbox is actually on a different server. I assume that this is an issue with replication and will go away when all servers are on 2.3.16? I looked at mupdate.c and this is a debugging level message. So I could change my logging levels and the message will go away :-) But it does seem weird that it wants to try and delete the mailbox in the first place. I use a unified configuration for murder. I know there was a lot of work done on the replication in version 2.3.13. Cheers Karen ---- 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