Apple mail show unread messages

To show only unread messages in Apple Mail on your Mac, follow these steps:

1. Open Apple Mail on your Mac.
2. Click on the "Mail" menu at the top of the screen.
3. Select "Preferences" from the dropdown menu.
4. In the Preferences window, click on the "General" tab.
5. Under the "Show" section, select "Unread messages" from the dropdown menu next to "Show".
6. Click "OK" to save your changes.

Alternatively, you can also use the keyboard shortcut "Command + Shift + U" to toggle the view to show only unread messages.

Note: If you want to show only unread messages in a specific mailbox or folder, you can select that mailbox or folder and then use the same steps above.