Hi. I've read Sims message of 2009.08.04 and following replies with interest. Unfortunately I couldn't find an answer (in archives) to the following question. Those using cyrus-imapd in a clustered environment, which cluster environment do they use? Veritas, RedHat, ... ? We're currently running an active-passive cluster with Sun Messaging under Veritas. There is a specific Veritas agent for that product that handles checks and switchover in case of node failure, but I guess nothing for cyrus. We will (try to) establish an active-passive cyrus cluster, possibly with Veritas. RedHat cluster as second choice. I would appreciate some pointers if someone has already been there. Have a nice weekend, Paolo Cravero ---- 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