Travel Technology - E-Mail Question

Oh FT Gods of Tech,

How can I get information on a Yahoo e-mail address (ISP, etc.)? My wife recieved a suspicious e-mail over the weekend, and suspects it came from her former employer (she and her partners are considering getting a restraining order against the person).

Check the source or headers of the message and look for the "X-originating IP", that is the IP it was sent from.

Okay, is there any way to get information on the IP address?

You can find out who it's assigned to (which provider) here

http://www.arin.net/whois/

and about a million other places online, do a google on lookup IP address

Okay, is there any way to get information on the IP address?Try http://www.geektools.com/whois.php

Check the source or headers of the message and look for the "X-originating IP", that is the IP it was sent from.

I don't see this in the "to" "from" "subject" etc. Is there another step to getting this info?

Thanks for the information.

It appears the e-mail was legit (although a bit strange).

Is there an IP address here because the person sent the email through Yahoo using a mail program?

I thought if you are using a web based service like yahoo or hotmail there would be no local ISP address, only the address of the web based host.