you can get her IP address (internet protocol) and by knowing it you can know her location like which country
if your e.mail was a hotmail account , go to options , then mail options , then mail display settings then in the message headers select advanced then ok , then go to the e.mail that was sent to you then you will find a number included under the subject it contains dots and something like that , so copy it then go to this link
http://www.formyip.com/learn-more-about-ip.php
then go to (find IP address country)then
paste the number there under ( Lookup location information by IP Address), then click on submit and there you go , you will see information about her IP address
if you e.mail was yahoo or anything else and you didn't know how to find the IP there i can help also
3al 7alten hai el bent elli ba3tetlak e.mail akeed wa7di kazzabi aw 3am tetkhawwat 3alek w meshtheyye tetsalla la2enno mafi bent bteb3at hek e.mailat ella iza kan bedda tetsalla ,