If you need to reply to a
single group member and not to the entire group, follow these steps:
1. Open the message you'd like to reply to.
2. Click “Reply” at the top right.
3. Click the “Expand Header” icon. This icon is the two
chevrons pointing downward at the left of the word “Subject”.
4. On the "To" line click the single chevron icon at
the right for a drop-down list to select the email address to which you'd like
to send your reply.
5. Enter your message and click “Send”.
Yahoo actually has these instructions buried
in their Help Section, however, I added
additional text because the Yahoo text was extremely terse and cryptic.
