Can you print return labels form email?

Yes u can

They have kiosks where you can log in to your Amazon account and print up your return labels. The printer prints onto sticker labels that you can then affix to your package.

You can, but don't need to, just print at kiosk when you pickup.

Yes you can print return labels there. Don't bother printing them at home unless your in a rush. You just need to sign into your amzn account on their kiosk.