Viewing Email Headers | Busix Documentation

Viewing headers is something occasionally required to diagnose delivery issues. Each email client has their own way of viewing headers:

Outlook

To view headers in Outlook, double-click on the message you are interested in to open it in a new window:

In the new window, go to the File tab on the top of the Ribbon:

Now go to Properties:

View Headers Outlook 2016 — File Properties

The header information is in the dialog box on the bottom:

Gmail

To view headers in Gmail, click on the down arrow next to the reply button and click “Show Original”. The header information is then at the start of the second pane:

Outlook.com

To view the headers on Outlook.com, select the message you want to see the headers for, right-click, and then select “View Message Source”. If it comes up blank, just close the window and try again.

Go to your Inbox. As you can see, I only use this account for gaming and family monitoring:

Right-click on the message you want to investigate and choose “View Message Source”:

Here is the message source. This is admittedly a lot of data.

Roundmail

To view the header in Roundmail, you select the message you are interested in, pick the “More” button, then “view source”:

Select the Message that you’d like to view. Click “More”, then “Show Source”:

View Header RoundCube — Click “More” and then “Show Source”: