Hello! I am the DNS Dude!
Setting up DNS is a critical aspect of hosting. Incorrect DNS setup can result in sluggish response or nasty downtime. This website is no where near complete. If you use Plesk then go right ahead and click the "Plesk DNS" link. It contains vital information for configuring your DNS. Also, you should check out Recursion and Reverse DNS. Also, if your e-mail sending is delayed with your new plesk install, click here for the solution!