Actually, just on a technical note, this is what u should do:
Most people have a dynamic IP, which means that their IP changes every so often. ISPs keep detailed logs so they can find whoever had that IP at a certain time, but those records take up a lot of space and are usually phased out... point is, you need to forward exact email to email address..
1. Try
abuse@source.com
First step is Email source, e.g.
johndoe@yahoo.com
If that is obviously faked, e.g. he leaves "
nobody@isp.com"
or in any case, look carefully in the headers...
2. Try
abuse@router.com
Usually something like xyz012-cl-soap8v.s.ty.us.smtp.email.com
There is a hoplist, and if he can manage his mail server to fake hop information, most servers certainly wont! Trace it as far back as you can and it should how...
3. If all else fails, try his IP address / ISP! Or, do it all anyways (and get him in real trouble too he deserved it)
tracert and neotrace only show infos on current sessions, whoever the heck suggested that. What you want is something like:
nslookup 123.45.67.89
ping -a 123.45.67.89
netsh does it too
Daniel Wang