Sam Spade is a general-purpose Internet utility package, with some extra features to help in tracing the source of spam and other forms of Internet harassment.With the help of Sam Spade you should be able to successfully track the senders of unsolicited emails in a few minutes
for the entirety, samspade is to tracking the IP adress. so, if the IP is a server, then you can get the information. But, no all type of IP. If you want the best one is Visual Route. I'll try to find the downloader..
