I also find it bewildering than the LH website and app offer no option to email an itinerary or e-ticket confirmation. I purchased two tickets from LH last month — for one of the tickets, I received an emailed e-ticket promptly; for the other, I didn’t get an emailed ticket even though I used the same email address when purchasing the ticket. As a consequence, I had to enter all the data for my second ticket into TripIt manually. I can call LH to get them to email the e-ticket to me, but it would be so much easier and expeditious if I could just request it myself on the website or app.

I don’t know of any other major airline that doesn’t offer the functionality of being able to request an emailed itinerary confirmation and/or e-ticket online.