Find All Unread Messages in Yahoo! Mail Classic
To find all unread messages in all your Yahoo! Mail Classic folders:
- Select Search Mail from the Yahoo! Mail navigation bar.
- Follow the Advanced Search link.
- As the search criterion, specify: To, Cc, Bcc: contains.
- Type "." (without quotes) in the entry field that follows contains.
- Next, make sure Search is selected under Options:.
- Select Only Unread Messages from the drop-down menu.
- Select all your folders under Look in folders:.
- You may want to keep the Sent folder unchecked.
- Eventually, click Search.

