Control Panel-Course Tools-Messages
Messages are private and secure text-based communication that occurs within a course and among course members. Although similar to email, users must be logged into the course to read and send Messages. Students are not notified if they receive a new message, so advise them to make routine checks for new messages.
Messages are organized in folders, marked as Read or Unread, moved to other Folders or deleted. The Messages area has two folders, Inbox and Sent that cannot be deleted or renamed. To read Messages, click a Folder, locate the desired Message, and click the Subject link.