How can I display the "from" address on received e-mails in Outlook?

Question

This has to be obvious, but how can I view the actual "from" address of a received e-mail?

Answer 1

How can I display the “from” address on received e-mails in Outlook?

You can see the from email address in the full message headers.

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Displaying Full Message Headers in Microsoft Outlook (Windows)

Outlook 2007/2010/2013

You can display full headers by double clicking on a message so that it opens in a separate window (not the preview pane).

1. Start Outlook.
2. Double-click the message for which you want to view full internet headers.
3. Click Options (2007) or Tags (2010/2013).

The Message Options dialog box is displayed. The internet headers are shown in the Internet headers field at the bottom of the dialog box.

You may have to scroll down to see the from address.

Source Displaying Full Message Headers in Microsoft Outlook (Windows)