Trace the IP Address, Yahoo / Hotmail settings
Here are the settings for Yahoo & hotmail to view the Headers (i.e, which contain senders IP address) of the received email.....
YAHOO->mail options->general preferences->under the messages header->Select show all headers on incoming messages->save changes.->Done
RESULT:- All emails would have headers like : X-Originating-IP [XXX.XXX.XXX.XXX] HOTMAIL->options->mail display settings->select display full headers->Done
RESULT :- same as for as yahooTo get the IP address location, there are many website which you can search on google