1. Begin by opening up Internet Explorer and selecting the "Toolbars" sub-menu from the "Tools" menu at the top. From the "Toolbars" menu, select "Customize" to continue.
  2. The "Customize Toolbar" dialogue will now appear, under the "Available toolbar buttons" heading locate "Read Mail" and select it. Once selected click the "Add" button to move it to the "Current toolbar buttons".
  3. Click on the "Close" button to finish.
  4. You have successfully restored the "Read Mail" button to Internet Explorer 7. The location of the button may vary, but should resemble the picture below.