If you're on the Professional or Advanced Plan, you can have the emails your attendees/students receive reflect yours.
The primary email address you signed up with will be the one displayed when a student receives a reminder email and for all notifications. If you want to change it, just log in to your profile and do so. *This main email also receives all notifications about student/attendee registrations, reminders, etc.
NOTE 1: If you want to further customize the email they receive, you can take a look at our integrations section here
NOTE 2: To find out what automatic emails attendees/students receive, take a look here