Doesn't have to replicate. SMTP is a store and forward transport. You can exploit this behavior and have one server that normally accepts email for your mailboxes (e.g. you mailbox server), and one that is configured that should it receive mail, would forward it to the Exchange server. This could be a FE server or it could be a separate SMTP MTA. Either way, it's only job is to receive mail and in the event that the mailbox server is unable to accept mail for non-fatal reason, to queue the mail until the mailbox server is once again operational. At that time it should dequeue and normal operation would resume. The non-mailbox server would have a higher MX cost. Al -----Original Message----- From: Umar [mailto:umarpirzada@xxxxxxxxx] Sent: Monday, August 09, 2004 1:41 PM To: [ExchangeList] Subject: [exchangelist] RE: Backup mail server (One domain, two mail serve- rs) http://www.MSExchange.org/ Ok i found out abt the MX records implementation. I learnt that 2 MX records can exist one for each machine having exchange 2000 configured to receive email for the 2 domains. Both will have some cost issue involved which will set the priority. I got all that. What confused me now is that how will both the MAIL SERVERS replicate data amongst one another. Both should contain the same mailboxes right to be able to replace each other...plz drop in some ideas... Umar ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: al.mulnick@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx