Appointments+ Notification Emails Not Functioning

Hi, I am having trouble getting my notification emails to send out properly in the Appointments+ plugin.

I have set the auto-confirm to "Yes" as well as other recommended settings I have researched.

I installed the WP SMTP plugin and it does send out test emails correctly but Appointments+ does not.

The "Log" tab in settings show confirmations as confirmed and emails as sent but no emails are actually going through.

I have granted access to the Admin panel for testing.