How do i see the header in mac mail

To see the header in Mac Mail, you can follow these steps:

1. Open Mac Mail and select the email message you want to view the header for.
2. Click on the "View" menu at the top of the screen.
3. Select "Message" from the drop-down menu.
4. Click on the "Headers" tab at the top of the message window.
5. The header information will be displayed in a new window. You can scroll through the headers to view the sender's IP address, the mail server used, and other details.

Alternatively, you can also use the keyboard shortcut "Command + Shift + H" to toggle the headers on and off.

Note: If you're using Mac Mail version 12 or later, you can also use the "Show Original" feature to view the raw email headers. To do this, select the email message, then click on "Message" > "Show Original" or use the keyboard shortcut "Command + Shift + O". This will open a new window with the raw email headers.