Can't Access Email Within the Course.

If you click the EMAIL tool:

 

toolbar

And receive the following error:

 

error

 

This means you have a quiz "in progress". The system disables the email tool when a quiz is started to prevent students from accessing emails which may contain information that could give the student an unfair advantage over the other students.

To regain access to the email tool, please complete all quizzes which are IN PROGRESS.