By default, when you open an email message or view it in the Reading Pane, a photo appears of the sender, if available. Photos of the sender and all recipients also appear in the Outlook People Pane beneath the Reading Pane.
You can turn this feature on or off. If you turn the feature off, photos do not appear in the message window, in the Reading Pane, or in the Outlook People Pane.
- Click the File tab.
- Click Options.
- Click People
- Select or clear the Show user photographs when available (requires restarting Outlook).
- Click OK.
- Exit and then restart Outlook.