tracing the originating IP address of an email
HIis it possible to trace a ip adress from where the email came from?
i know i can get the ip in the headers, but it was sent from a yahoo account so the ip it displays is registered to yahoo. i'm after the ip adress of the person's computer that sent the mail.
or even a ip of there isp, i just want the location where it came from.
is it possible?