My email about a train reservation in Italy says the following: 'Remember: you must be able to show physical copies of your reservations ánd your Interrail Pass to the conductor. This email is not a valid ticket. So keep your printed copies in a safe place'.
Does this mean I only need a physical copy of the reservation or that I also need a physical copy of my interrail pass. If so, how do I get the physical copy of my interrail pass (where can I find it in the app to print it out)?