Locating email spammer

[Pactum]

Well the title pretty much says it all, buuuut...

I've been receiving a lot of emails containing a rather disturbing subject... animal porn (might turn some of you guys on, but it just grosses me out) I mean a girl fucking a horse..... Jesus Christ!!.... ew
Anyway, the email address is always the same and I suspect that it's one of my school buddies.
So, How would I get the sender's IP address, then be able to pin-point the exact location of where it is being sent from.

FYI, I'm running a Mac, so most (If not all) programs of that type won't work on my computer...

[slowz]

You cant Most, if not all spam is sent via a open mail server.

Take a look at the headers and see what you can find

[Pactum]

It's not spam. I'm 110% sure thats it's someone from school.

[Pactum]

Well i checked the header, and i found an IP address.
I used a simple IP address tracker online, and it gave me the location of the ISP.

[deathlord888]

ya mass it does still work, i have used it, it only works for a few sites tho

[MISFlT]

bitchbucket? idr if that was the name

[deathlord888]

ya mass sent it to me before i dont have it anymore tho

[Pactum]

... What?

I think I found a link here somewhere of mass' IP tracking program thingy (can't remember where it was posted) but it's only for windows, and like I said before, I'm running a mac.

[DoG MikkyW]

Mass, when are you going to make your 100webspace open so I can finally download all of those programs?

[deathlord888]

www.massdefy.com

[DoG MikkyW]

No, not those ones, he has a different page with about 25 different program of much more interest than most of the programs on there.

[Pactum]

www.massdefy.com
Cool.. Can't download any of those though, since I have a mac :(