You can have two address entries in your DNS to imap.foo.bar in BIND : imap IN A 1.2.3.4 imap IN A 4.3.2.1
This will do a round-robin load balancing ... and when some server goes down .. maybe you can't get a response, but if you retry the other one will get the request. The problem is : both imap server must access the same storage for messages ... or this storage must be mirrored across internet ... if yu don't like of round-robin, you can set a TTL of 2 seconds in your DNS and a script that detect the server failure and updates the DNS record. but the problem of storage still remains. []'s On Sat, 2003-07-12 at 09:27, Lars Holmstr�m wrote: > I consider building a disaster tolerant mailsystem for in and outgoing > mail. > > I already have two ISPs and MX records that direct incoming > mailtraffic properly. > > The problem seems to be the IMAP. > > Does any one have a suggestion for how to do this ? > > /Lars > Ps. Disaster tolerant in my view is when I can afford to loose one > computerroom completely and the service from a users perspective is > still available. Ds. ------------------------------------------------------- This SF.Net email sponsored by: Parasoft Error proof Web apps, automate testing & more. Download & eval WebKing and get a free book. www.parasoft.com/bulletproofapps1 _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
