DNS Stuff

You have to check out www.dnsstuff.com

They have a wealth of tools available to help people check on their domain names. From simple whois queries, that help people find out about who owns a domain name, to email checking programs to troubleshoot if it is your computer causing problems or the person you are trying to send the email to.

On an average day, I probably go to that website at least twice to check on new domains for clients, or to find out about other things. Bookmark it, and check out the many things available.