The Messages tool allows you to reply to a message sent to you by another member of the course.
Select the Messages tool from the Tool Menu in your site.
While viewing the Messages area, open the Received folder to view a list of your received messages.
Click Reply to reply to the author of the original message. Click Reply to all to reply to all parties included on the original message.
Enter the reply within the Message field. The original message will automatically be provided in the field and can be sent with the reply.
For information about composing a message, see How do I send a message?
Click Send to send the reply.