first of all, thank you for taking your time looking into it. I can confirm that you have received all the emails (receipt and tickets) but I have tried it my self again this morning and nothing. What I also have noticed, is that the ticket ID in my order is not equal to the ticket recorded in the backend. In the middle image you see the SMTP gateway showing no email was processed (unlike in your case).
I have manual ordered quite some free tickets for our sponsors and I never saw an outbound email! As a result I have to screenshot them and email them to the sponsors.