Microsoft Outlook 2010 can insert graphics in an email message; a vertical line in an email message can act as a separator line between the text and a photograph, for example. The "Insert" tab on the command Ribbon includes an "Illustrations" group that contains pre-formatted shapes; the "Shapes" button contains the "Line" options; the "Drawing Tools" ribbon features formatting commands that change the line's color and thickness for a custom look on your message.
Open the Outlook email program.
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Click the "Home" tab.
Click the "New E-mail" button in the "New" group. Open a new message window.
Click the "Insert" tab on the command Ribbon.
Click the arrow beside the "Shapes" button in the "Illustrations" group. A chart of shapes opens.
Click the "Line" button in the "Lines" section. This button appears as a diagonal line. The pointer converts to a "+" symbol as it moves over the message box.
Click and drag the pointer to insert the line on the message box. Adjust or pull the ends of the line for the vertical position.
Click on the line again to edit. Select the preferred editing options from the "Drawing Tools" ribbon. For example, the "Format" tab includes the "Shape Styles" and "Shape Outline" options that can change the line's color and thickness.
Click away from the line to set in place on the message box.