This guide details the process in which an Email Message header is found in Outlook on a Mac.
Firstly, open Outlook on the Mac. Then, locate the Email that you require the header for. Right-click this, multiple options will be displayed.
As shown below, select the 'View Source' option from the drop-down list:
This will then display a text document containing the message header, as shown here:
Please copy the entire contents of this document and send them to the 848 Engineer for further investigation.