How to get a copy of an email header?

This how you get an email header to investigate potentially malicious email

Please find the below steps to collect the internet message header associated with an email

In Outlook for Office 365, 2016, 2013, or 2010 on a PC

1. Double-click an email message to open it outside of the Reading Pane.

2. Click File > Properties.

3. Header information appears in the Internet headers box.

Tip: You can highlight the information in that box, press Ctrl+C to copy, and paste it into Notepad or Word to see the entire header at once.

4. Include a copy of this header into this ticket response and we will take it from there.