When reporting email issues, it is essential that we receive the full message headers from a message. Additionally, sometimes our Support department may request the full headers from an email message in order to troubleshoot mail delivery problems.

Every single Internet e-mail message is made up of two parts the header and the message body of the email. Every single email you send or receive on the Internet contains an Internet Header, a full and valid e-mail header provides a detailed log of the network path taken by the message between the mail sender and the mail receiver(s) (email servers).

Your email client program will usually hide the full header or display only lines, such as From, To, Date, and Subject, see below for more information on pulling headers for your email client.

If you mail client is not listed below, please use an online search for more information. If you need further assistance in finding your email headers, please contact support for your mail client.

Mail Clients

Roundcube (cPanel).

1. Highlight email message
2. Click the 3 dots with “More” underneath
3. Click Show Source

Apple Mail.

1. Start Apple Mail.
2. Open the individual message.
3. Go to the View menu and select Message and then Long Headers or All Headers.
   Result: The full header information appears in place of the normal header.

Mozilla Thunderbird.

1. Start Mozilla Thunderbird.
2. Go to the View menu and select Headers and then All.
3. Select the individual message.
   Result: The full header information appears in place of the normal header.

Google Mail (Gmail).

1. Open the individual message.
2. At the top-right corner of the message window, click the down arrow next to Reply, or select More options.
3. Click Show original.
   Result: A new browser window will open showing full header information.

outlook.office.com

1. Open up a web browser (Chrome, Firefox, Safari, etc.)
2. Log into https://outlook.office.com/
3. Right-click the appropriate message > View > View message details

Outlook 2016

To see message headers in Outlook 2016 and higher, this is what you need to do:

1. Open the email with the headers you need to see.
2. Select the Files tab in the email’s window.
3. Click on the Properties button.
4. You’ll get the “Properties” dialog box. In the “Internet Headers” field you’ll see all information about the message.
5. Microsoft hasn’t made the Properties dialog stretchable and the details are shown in a tiny field. We suggest clicking within the Internet headers field and then pressing the Ctrl + A keyboard shortcut to copy the information to clipboard. Now you can paste the details to a new support email.

MS Outlook 2011

1. Right-click on an email and click View Source.
2. The full headers should pop up in a box.

MS Outlook 2010.

1. Start MS Outlook 2010 and double-click the message to get it in its own window.
2. There are two ways to open the Properties window:
   1. Click File to access the Backstage view, select the Info section, and click the Properties button. OR:
   2. Go to the Message tab, find the Tags group (which is the fifth block over) and click the Dialog Box Launcher (a little button with an arrow on it).
      Result: The full header information appears in the Internet headers box

MS Outlook 2007.

1. Start MS Outlook 2007 and double click the message to get it in its own window.
2. Go to the Message tab, and in the Options group (which is the fourth block over) click the Dialog Box Launcher (a little button with an arrow on it).
   Result: The full header information appears in the Internet headers box.