Instructions to open headers for various email clients and services like Outlook, Hotmail, Yahoo, AOL, Gmail

 
Hotmail

• Log into Hotmail.

• Click on "Options" tab on the top navigation bar.

• Click on the "Mail Display Settings" link.

• Change the "Message Headers" option to "Full".

• Click the "OK" button.

Yahoo Mail

• Log into your Yahoo! Mail account.

• Click the "Options" link on the navigation bar.

• Click the "General Preferences" link.

• Go to the paragraph titled Messages and Locate the Show Headers heading and select  "All."

• Click the "Save" button to put your new settings into effect.

Once this setting is saved, go back and open your email and you should view the headers.

AOL Mail
If the email is sent from anywhere OTHER then AOL, and you are receiving it in AOL, then open the email you want to trace, or have your client open the email, and look for the link Details. This link is usually just below the To:email  in the email message.  If the email is sent from an AOL user to another AOL user then our Reverse AOL Screenname search can get you the sender's information.

Gmail

1. Log into your Gmail Account
2. open the Email whose headers you want to view
3. Click on the more options link in the message next to the date of the email.
If the link says hide options then do not worry u have already
clicked on the more options link.
4. Now click the link called show original.
5. This will bring up a new window
with headers and the body of the message.

Thunderbird (Firefox - Mozilla)

To view email headers,
Go to "View"
Then go to Headers
and select "All" to  view email headers.