Matthew, Imail works nicely with Microsoft clusters, as well as with NSI Double-Take and Legato/Vinca. I have set it up with the former--it's just a Generic Service to MSCS.
You "simply" need to find the cash for two servers, a full-mesh FC or SCSI setup, redundant switches, and redundant uplinks from the colo. That should just about take care of it. You would not lose any data in the event of a single component failure, as everything is replicated. > 5) If box 1 goes down for a bit... and I switch to box 2.... then get box 1 > back up and running. Can I get email that is sitting on box 2 over to box > 1? Easily? :-) This kind of orphaned-data situation won't happen with a clustered environment. It's a major bear with distributed, MX-based redundancy. Needless to say, though, adding a secondary active MX is much cheaper than the clustering hardware and software increment. > I'm being told the 4-6 hours for the mail server to be down is the max > during business hours. Whatever suits their fancy. If you just had a warm-spare (with all the accounts replicated, but none of the mailboxes), that could be up in a jiffy for new mail, but you could have orphaned data which would take way more than 6 hours to get back in place, if ever. So it depends on what "up" and "down" mean! Sandy Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
