===== Ver las cabecereas de los correos electrónicos en los clientes / webmails más populares ===== 

**Fuente**: [[https://pobox.com]]

  * **Gmail**: Click on the down arrow, next to the Reply button, at the top right corner of the message. Select "Show original". 

  * **Hotmail**: Click on the down arrow, next to the Reply button, at the top right corner of the message. Select "View Message Source".

  * **Yahoo!**: At the bottom right corner of the message, click the link for "Full Headers". 

  * **Outlook 2010**: Open the email in a separate window.  Click the "File" tab.  Select the Properties button.  They are in the Internet Headers box.

  * **Outlook 2007**: Click on the small arrow to the right of Options. They are in the Internet headers box.

  * **Outlook 2003**: Right clicking on the message from your mailbox and select Options. They are in the Internet Headers box.

  * **Thunderbird**: Click View > Message Source.

  * **Mac Mail.app**: Click View->Message->Full Headers, or Shift-Command-H.

  * **Microsoft Exchange**: Click on File->Properties->Internet.

  * **Eudora Pro**: Go to the tool bar just above the message, and click the button that reads "blah blah blah".

  * **AOL Mail**: Right click on the message, then select "View Message Source".

  * **Mutt**: Hit "h".

  * **Pegasus E-mail**: press Ctrl-H.