Missing Email Notifications

After a fresh install, I'm not getting email notifications from visitor responses, strangely, when I create a ticket and assign it to a visitor, they get the email, or when I add a visitor, they get the welcome email, but anything a visitor initiates fails to send email notifications

I have tried native PHP mail and SMTP, and the results are the same for both, I do not get notified if a visitor sends a ticket, or replies to an existing ticket

Any help or direction is much appreciated