Replying to Messages You've Received
The simplest way to compose a message is to reply to one you've received. The format for replies varies slightly between mail and news messages.
Replying to a Mail Message
When you select a message and click the Reply button, Outlook Express opens a New Message window, selects the same format as the message to which you're responding, fills in the To: line with the sender's address from the original message, adds Re: to the beginning of the original Subject line, and positions the insertion point at the top of the message. When you click the Reply to All button, Outlook Express picks up every addressee from the To: and Cc: lines in the original message and adds them to your new message.
By default, all replies ...