There's an order used for domain name lookup. Usually, going to an external DNS server is the last option. If you have a Windows DNS Server on the same local network, it is probably serving the local address. If you go to a command prompt and type "nslookup webmail.dummydomain.com", do you get the IP Address for the dummy server or the live server? Regards, Deryck -----Original Message----- From: Boedy Irhadtanto [mailto:boedy@xxxxxxxxxxxxxx] Sent: Sunday, February 23, 2003 8:13 PM To: [ExchangeList] Subject: [exchangelist] DNS ambiguity Problem http://www.MSExchange.org/ Dear all, We have exchange server (Local) that has DNS name WebMail.dummydomain.com (We use Win2K DNS to resolve local name), The problem is we also have the real webmail in internet called http://webmail.dummydoman.com. Everytime local user trying to acces internet webmail via IE6 , they always get the local Exchange OWA. I know it has something to do with DNS , is there any way to solve this problem ? or do I have to change the Hostname ? Thanks Boedy ------------------------------------------------------ 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: drichards@xxxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')