http://blogs.technet.com/b/wsnetdoc/archive/2009/05/18/tips-for-nslookup.aspxThe following are some nslookup commands that can help when troubleshooting an incorrect or nonexistent Domain Name System (DNS) entry, such as an A record or MX record. The root for this type of problem is typically one of three things: · Expireden-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)