To change the contact email for Canvas notifications, log into Canvas and click "Settings" at the top right.
On the far left, click "Add Email Address"
Enter your email address and click "Register Email"
Click out of the pop-up that appears.
You will receive an email from Canvas. Click "Click here to confirm this registration"
Then you can click on the star next to the new email to mark it as default. If you would like to delete your previous email, you can click on the trash icon next to it.