What is the Mark Unread feature on AOL Mail?
Mark e-mail as unread on AOL Mail
To mark your e-mail as unread:
1. On the AOL Mail window, click the folder that contains the e-mail you wish to mark as unread.
2. Click the check box next to the selected e-mail, to place a check mark in it.
3. On the Action drop-down menu, click to choose Mark Unread.
Note: Unread mail can be identified by their bold text listing.