Thread: Moscow - Atlanta: paper document needed?

Hello,

I am new to this forum. My friend works for Delta and said she could give a friend of mine in Russia a buddy pass to fly to Atlanta from Moscow in December.

My question is this: do i need to mail any paper tickets (buddy passes) to Russia so that my friend can present them to the airline in Moscow, or is everything done electronically these days, with just some confirmaiton code in the computer systems?

Thank you