If it`s right, I don`t need to send a letter and then show all the papers at the airport desk, do I?
Thanks in advance.
Dear Federico Rapela,
Thanks for your question!
It is informed that you can apply E-visa, please apply it at this link: https://www.vietnam-evisa.org/apply-e-visa.html
For E-visa, we will send you an E-visa letter by email, you have to print it out to show it at the border with your passport to enter Vietnam