Email Notification not working

Hello, I tried putting 2 different email accounts of my own just to test if the email notification once there’s a booking from a customer, but the notification seem to be not working. I put my emails to
1. WP Travel Engine > Settings > Emails > Admin Email Template > Sale Notification Email and
2. WP Travel Engine > Settings > Emails > Customer Email Template > From Email

Both are not receiving any notification. Is there a way to solve this? Btw, I’m just using a local environment. Will that affect?

Thank you.