Forwarding is the way to do that! It creates a new message with the content of the original message already entered. You can add your own comments or just send the message on. But make sure you have removed all email addresses from the body for privacy reasons.
To forward a message with Eudora:
- Highlight the message in its Eudora mailbox.
- Click the Forward button (the one with the forward pointing arrow).
- Alternatively, select Message | Forward from the menu.