Configure the layout of the Folder pane, message list pane, and message pane according to your preference.
 | In Classic view, the folder pane runs the entire height of the window. |
| In Wide view, the message pane spans across the width of both the folder pane and the message list pane. |
| In Vertical view, all three panes are side-by-side. |
Click the menu button , open the menu, then go to and choose a layout.
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