I am looking for something similar also and yet to find a solution. Mine is only one site but 2 IMC with 2 smtp relay on DMZ. I can only configure 1 IMC point to 1 smtp relay. Without DNS not sure how to do load-balancing and failover between the two. If you found a solution can share with me? The only solution other than DNS that I know of which is not practical is to used a load-balancer. Have a Cisco CSS in-house, I can create a virtual IP and point to the two smtp relays in DMZ, then both IMC just point to this virtual IP. But the CSS is expensive which is used more for load balancing web servers so I am reluctant to used it just for smtp load-balancing. -----Original Message----- From: Dêniz Feital (Chiptek) [mailto:dfeital@xxxxxxxxxxxxx] Sent: Tuesday, November 12, 2002 2:32 AM To: [ExchangeList] Subject: [exchangelist] Smart Host in IIS 5.0 SMTP Relay http://www.MSExchange.org/ Hello Experts (not me !) Scenario: The company where I work has two sites, in diferent cities. In each city we have: 1 Exchange Site 1 smtp relay (in DMZ) 1 IMC (Exchange Server 5.5) lots of users. I know I can put more than one IP address in IMC (Configuration, connections, IMC, connections, message delivery, Forward all this messages to this host). I dont want to use DNS at this time. I would like to know if its possible to configure more than one tcp/ip address in SMTP Relay (Server, Default SMTP Virtual Server, Domain, right click on the domain name, general, forward all mail to smart host. Again, I dont want to use DNS at this time. Any ideas? Thank you Fellows > Dêniz Feital > GIC - Chiptek / Vésper > Tel (11) 3489-7730 > Microsoft Certified Systems Engineer > > > ------------------------------------------------------ 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 ------------------------------------------------------ ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: lbong@xxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')