Trace where you got email from

Check out this visual implementation of traceroute. This works good to find out from which location you got email from. Click at this link -> http://www.yougetsignal.com/tools/visual-tracert

All you need to do is type the IP address in very first Received:from field from you email message header. in MS Outlook, you can right-click the message and select "Message Options", read the internet header where you can find all hops which this message took to reach you.

After putting the IP simply click 'Host Trace'

Remote Address
Use Current IP