E-Mail Notifications PeopleTools 8.59

We recently updated from PeopleTools 8.57 to 8.59 FSCM PUM 46, and have found that when creating an approval transaction, approval email notifications no longer go out when an approval transaction is submitted. When I check the Transaction Registry, email is no longer available under the Notification options. I've looked at the code behind the transaction registry page, and I see the email field is hidden for Tools 8.58 and above.

I've looked for documentation on the change, but have been unable to find anything in regard to the changes made. Any help with finding proper documentation or where I need to go to configure would be great.