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How do I find and view full email headers?

 

For certain types of support inquiries it is very useful when you include a copy of the full message header details.

Please copy & paste them right into the body of a message to us, rather than sending them as an attached file.

Popular Mail Header Help Pages

Outlook 2016 Windows / Outlook 2016 Mac

  1. Locate the message you’d like to view headers for.
  2. Next choose that email with a tap or click.
  3. Go to ** File** for Properties and Copy the “Internet header”. (Outlook 2016 Mac: right-click on that line-item and select  “ View Source”.

View from Windows 10:

Example from macOS 10.13 - High Sierra:

macOS AirMail

  1. Open the message you’d like to view headers for.
  2. Look to your View Menu.
  3. Select  “ Show Raw Source”.

Gmail - web

  1. Log in to Gmail
  2. Open the message you’d like to view headers for.
  3. Click the down arrow next to Reply , at the top-right of the message pane.
  4. Select “ Show Original”.

FastMail - web

  1. Log in to FastMail
  2. Open the message you’d like to view headers for.
  3. Click the More button in the top-right area of the message pane.
  4. Select “ Show Raw Message”.

Yahoo - webmail: See the Yahoo Mail - help page on full headers.

**Time Warner / RoadRunner / Spectrum
**

  1. Open the Mail email message.
  2. Click on the View Header button.
  3. The Message Detail window will appear. Click on the View Header link on the right side of the page.
  4. Copy the Header

Note: Example of the most important part of a full Email Header:

From Sane Tester Wed Dec 9 17:37:53 2015Date: Wed, 9 Dec 2015 17:37:53 +0000 (UTC)From: Sane Tester <creepy_pasta23@yahoo.com>Reply-To: Sane Tester <creepy_pasta23@yahoo.com>To: "support@sanebox.com" <support@sanebox.com> Message-ID: <643503893.714052.1449682673896.JavaMail.yahoo@mail.yahoo.com>Subject: Get Your Holiday Presents Early!MIME-Version: 1.0Content-Type: multipart/alternative; boundary="----=_Part_714051_52203246.1449682673894"References: <643503893.714052.1449682673896.JavaMail.yahoo.ref@mail.yahoo.com>Content-Length: 526
Help center free trial days

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