Since you don't mention the servers being in separate sites, or any need for DR. Why not consider a Server Cluster. I implemented it in our office with an EMC SAN and it has performed excellent. If one server fails, the other picks up the services automatically. It has been flawless. -----Original Message----- From: Lloyd Williams [mailto:Williams@xxxxxxxxxxxxxxxxxxxxxxx] Sent: Wednesday, July 20, 2005 12:06 PM To: [ExchangeList] Subject: [exchangelist] Redundant Exchange System http://www.MSExchange.org/ My management would like me to implement an Exchange system with some sort of server redundancy. The idea would be two separate mail servers, one being a backup of the other. Mail coming into server 1 would also get stored on server 2. Both machines would be online all the time and maybe a replication process would run every 15 minutes that would synchronize the two. In the event server 1 crashed, server2 would take over until server 1 could be fixed and got back on line. From what I have read I don't think this functionality is built into Exchange I think I would need a third party product. Does any one have any experience with such a set up. Thanks Lloyd Williams ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: mduncan@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx ********************PRIVATE AND CONFIDENTIAL******************** This electronic message transmission and any files transmitted with it, are a communication from the law firm of Shughart Thomson & Kilroy, P.C. This message contains information protected by the attorney/client privilege and is confidential or otherwise the exclusive property of the intended recipient or Shughart Thomson & Kilroy. This information is solely for the use of the individual or entity that is the intended recipient. If you are not the designated recipient, or the person responsible for delivering the communication to its intended recipient, please be aware that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this electronic transmission in error, please notify by telephone (816-421-3355), collect or by electronic mail (solutions@xxxxxxxxxx ) and promptly destroy the original transmission. Thank you for your assistance.