score:4
I did the same last year, I just printed the ticket page and took it along to Spain. No snail mail involved.
Upvote:2
Those details you need to provide are irrelevant to the ticket, probably just insurance/statistical data. Tickets are generated immediately after checkout, and you get to choose whether download them as PDFs, Passbook/Passwallet (For your smartphone), or as a code sent through SMS (Or all of the above).
You will receive the printable PDF through e-mail too, but you can also print them in kiosks located on main stations and Madrid airport (Terminal 4 next to the subway kiosks)
Upvote:4
I've found the same question here. In sum:
you can walk directly on the train with these [printed] tickets you do not have to pick up any other tickets from the station
Also:
If you did not have a printer at home then RENFE have Automatic Check-In Booths at Barcelona Sants
Change "Barcelona Sants" for almost any big station name (Madrid, Valencia, etc)