Ok so here are the issues 1. No emails are being sent

Ok so here are the issues
1. No emails are being sent to student and myself when they sign up, I don't even know if they sign up
2. When they register I have to manually add them to the class
3. Also I notice when I signed up a student
the student could not see what class he
Was signed up for when he logged in it says he was not registered for any course
4. Discussion is not seen through out the site when one is posted .