You can use Forward to send a mail message on to someone else. Forwarding a message includes all file attachments, whereas using Reply preserves the body text and does not include the attachments.
Open the message to be forwarded.
On
the toolbar, click . A compose window
opens. The text of the forwarded message appears in the body
unless you have chosen to forward messages as attachments in the Preferences
Mail tab.
Enter addressees in the To:, CC:, or BCC: fields.
Optionally, add a few lines of new text at the top such so that the recipient knows why you decided to forward it.
Click Send.