Users with the designation "Teacher" can adjust their notification preference as per their convenience for emails.
Here's a step by step guide along with a video of how to do this on Cialfo:
Click on your Profile picture in the top right corner and select "My settings"
Scroll down to Notification Settings and click on the checkbox as per your preferences. You can choose to receive notifications for Recommendations on a daily (Mon-Fri) or weekly (on every Monday) basis.
Click SAVE.