On Sun, 11 Nov 2007, Rich Wales wrote: > So, I would have replication set up going both directions between my two > servers, but the sets of users handled in each direction would be > disjoint. Each user would be assigned to one IMAP server (the master > for their mailbox collection), and the other server would be their > replica and act as their backup. We do this. It is quite useful to be able to bounce users back and forth between the two machines in a pair so that servers can be maintained (patches, O/S upgrades, whatever) without any user visible downtime. Three caveats: 1) It won't work with shared mailboxes. 2) I'm not running the same replication code as the rest of you (though replication in 2.3 is based on an old version of my code). I seem to remember Ken raising an objection when this last discussed a year or two back now. The objection may just have just been (1). 3) Sanity checks are good: USER dpc22 NO IMAP_INVALID_USER Attempt to update master for dpc22 -- David Carter Email: David.Carter@xxxxxxxxxxxxx University Computing Service, Phone: (01223) 334502 New Museums Site, Pembroke Street, Fax: (01223) 334679 Cambridge UK. CB2 3QH. ---- 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