View the full header of an email
Full headers can help identify who really sent an email, as well as the source of a delayed email. Here's how to view the full header information in Yahoo Mail.
Viewing the full header
Only a brief header is displayed by default.
- Open an email.
- Click More | View Full Header.
- The full header opens.
Differences between brief and full headers
- Brief headers - contain the sender's address, the recipient address(es), the subject, and the time received.
- Full headers - contain detailed information about who sent the email, to whom it was sent, and the route the email traveled on the Internet.
While it's possible for a sender to forge false information in the brief headers, you can obtain the true information from the full headers.
An example of a brief header sent from InfoBeat (http://www.infobeat.com):
From: InfoBeat Add to Address Book To: ****@yahoo.com Subject: Finance - Full Closing Bell @ 08/20/97 (1 stories) Date: Wed, 20 Aug 1997 17:43:03 MDT
An example of a full header sent from InfoBeat (http://www.infobeat.com):
From firstname.lastname@example.org Mon Mar 24 15:29:00 1997 Return-Path: email@example.com Received: from key-colony.merc.com (key-colony.merc.com [22.214.171.124\) by mta0.yahoomail.com (8.0.5/8.6.12) with ESMTP id AX08764 for <****@yahoomail.com>; Mon, 24 Mar 1997 15:28:59 -0800 (PST) Received: from tahiti.prod.merc.com (firstname.lastname@example.org) by tahiti.prod.merc.com (version 3.23, queueup copyright InfoBeat, Inc. 1996,1997) with stdio id AAJVI18872; Mon, 24 Mar 1997 16:30:23 MST Message-Id: <******@tahiti.merc.com> To: ****@yahoo.com Subject: Finance - Full Closing Bell @ 08/20/97 (1 stories) MIME-Version: 1.0 Content-Type: text/html From: InfoBeat Add to Address Book Priority: normal Errors-To: email@example.com Date: Wed, 20 Aug 1997 17:43:03 MDT Content-Length: ****
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