


To always show it on 2 lines, select the option: Always use compact layout. Here disable the option: Use compact layout in widths smaller than xx characters. View-> Current View-> View Settings…-> button: Other Settings… View-> button: View Settings-> button: Other Settings… View-> Arrange By-> Custom…-> button: Other Settings… To prevent the message list from switching between the Single-Line or Compact Layout by resizing any of these panes, you can force a consistent behavior and always show it on 1 or 2 lines by going to:

The horizontal space of your Message List is determined by the size of your Outlook window itself, and the width of your Reading Pane (if shown on the right), the To-Do Bar (if enabled) and the Navigation Pane or Folder Pane on the left. Always show message information on 1 or 2 lines This can be extended to up to 3 lines or turned off completely as well. In Outlook 2013, 2016, 2019 and Outlook for Office 365, there is also an additional message preview of 1 line. You can control whether Outlook will use this variable method of showing the message header or simply force it to always show on 1 line or 2 lines. When there is limited horizontal space, the message list will show the header information on 2 lines, also known as the Compact Layout. This will give your message list a table like view also known as the Single-Line Layout. The default behavior is that the message header information (From, Subject, Received date, etc…) will show on 1 line when there is enough horizontal space. How can I have it to always show on 2 lines? When looking at my message list in the Inbox, sometimes the header information is shown on 1 line and sometimes it is on 2 and some even hold a preview of the message.
