DNScape 1

DNScape 1.1 is a name and address search tool for internet addresses. It can be used by system administrators to verify the configuration of DNS tables and can be used by anyone to track down pesky spammers. Just type in the IP address you find from the headers in an unwanted mail message and retrieve all the information available from DNS on that IP address. You can extract the associated mail server and send mail directly to the administrators to warn them that a spammer is using their site.

Best of all, this is FREEWARE! Give it a try! Download DNScape 1.1.