Successful mission so far
I only needed to show it at the check-in counter but it worked. Later at the customs they didn’t ask for it luckily. One thing is that the email comes by name “dummyticket…” so I forwarded to my email address deleting this name…. Because they do check it on phone or else you have to print it but still hide the name. Would be more useful if they could send the email with a different name..