Yes. You can use ICON's Email tool to send messages to individuals, to groups you have created with the Classlist tool, or to your entire class (about students at one time). You may also send email to sections or groups within your class. If you send messages to multiple individuals, use the bcc (blind carbon copy) function to comply with FERPA regulations.
Your students can also send messages. You may wish to remind them to modify their email signatures to include their HawkID's.
For step-by-step instructions on using the Email tool, see the Online Help section Email Tool.