How to trace the source of an e-mail

Tracing the source of an email sent to you is one of my favorite due to the fact that it gives me more confidence of where and who sent the mail and avoid being hacked unknowingly.
This tutor will be covering outlook,Gmail,Yahoomail,Hotmail,AOL and Windows live.
I found it necessary to make an article of this because,these days cracking is so common among teenagers making it deadly for you and me to keep our heads layed down asleep.
Most crackers makes use of something called scam page which I will be making a post of in my next post.with this,you should be able to know if it is a scam or real.
For sure we all know that all email comes with headers,these headers contains various information that could be used to identify where it comes from in which containing the original internet protocol(I.P) address and the routing of the message.
Although not all electronic message you receive will allow you to trace them back to their originating point.
HOW TO
For:
Outlook - Right click on the message while in inbox and chose MESSAGE OPTION ,a new window will appear containing the headers at the bottom of it.
Gmail - Open the correspondent,at the upper right corner of the page,you will see the word REPLY with a little down arrow,chose chow original,the headers will be shown.
Yahoomail - Right click on the note and chose VIEW FULL HEADER,and you will be left with the headers of the mail.
AOL - Click on ACTION and then VIEW MESSAGE SOURCE
Windows - Right click on the correspondent while in inbox and then chose PROPERTIES,then click the DETAIL tab and you will be left with headers.
Note: You have to look carefully less you mistake something else for another.

You have successfully traced the source of you mail!