Developer Forum

This is happening because you've used the same name for your internal DNS
domain as for your external one - but that shouldn't be a problem. Open your
DNS server manager, and add a host record called www that points to the
website public IP address.

J> Our ISP is currently hosting our website, when any user
J> on the domain trys to go to our www.domain.com they get
J> an error in IE that the server can't be found.

<URL: http://www.yqcomputer.com/ ./~J.deBoynePollard/FGA/dns-split-horizon-common-server-names.html>