Blocking Mile ru for business, who faced?

Question

Mail for domain

Hello.
I just encountered the fact that mail ru, when creating a new mail on a new domain, instantly blocked a new mailbox with the wording "Suspicious activity" when trying to log in a second time. After that, without fail, it was necessary to bind the phone, fill out two questionnaires, where there was only a question about a criminal record, and at the same time the box hung on their check.
Who faced such tricks? Is this some kind of new way to tie phones to drawers?
If this is not a random glitch, it looks like you need to look for other options for mail, as such chips are alarming.