Mark As Read Button
To mark a message as having been read, click this button. When you click this button, the Read check box on both the Inbox form and the Saved Messages form is selected.
Be aware that messages in the Inbox form are not automatically marked as read just because you view them. In most cases, you must mark them as read using this button. (If the message includes a prompt to which you must respond, selecting a choice also marks as message as being read.)
Once a message is marked as having been read, it cannot later be marked as not having been read.