website that shows email settings
Use display settings to control the appearance of the message list, reading pane, and layout of conversations in the message list. Sign in to Outlook.com or Outlook on the web. For help, see Sign in to Outlook.com or Outlook on the web. Select the App launcher , and then select Mail. Select Settings > Display settings. Message list. Layout - Choose if you want email messages to appear in the list with either the sender or the subject on top of the message.