IPNetInfo is a small and lightweight utility, which allows you to easily find all available information about an IP address. This utility can be very useful for finding the origin of any unsolicited email that you may receive.
You can simply copy the message headers from your email software and paste them into IPNetInfo utility. IPNetInfo automatically extracts all IP addresses from the message headers and then displays the information about these IP addresses.
Key Features Include:
System requirements: Windows 98/ME/2000/XP/2003/Vista. *Note: You should allow outgoing connections on your firewall to port 43.