How to set up yandex.Mail on AWS?

Question

Amazon Web Services

Please tell me how I can set up a Yandex.Mail mail server on Amazon (AWS).
Here's what I already did, but I don't know if it will work or not.
In Route 53, I added an MX entry:
Name: @.xxx.com
Type: MX
Value: 10 mx.yandex.net
TTL: 300
As for the verification file, I have a dilemma. Where exactly should it be placed on the server? I can't put anything in the home directory. Then I placed it in the ubuntu directory.
Did I do it right or is there something wrong?
Thanks in advance!

Answer 1

the file to where get will take it from,
although xs where is the file in the mailserver