By default, the message preview pane may be turned off in webmail.  To display the message preview pane (similar to the display in Outlook and Thunderbird):

  1. Click Settings.
  2. In the left side Settings menu, Preferences should be selected by default.  If it’s not already highlighted, click Preferences.
  3. In the Preferences sub-menu, click Mailbox View.
  4. Check the box next to Show preview pane.
  5. Click Save