Is it possible to send letters through Yandex mail (mail for domain) that are not related to the main mailing lists of the site?

Question

Yandex

Hello.
We have a project.
It will have the main distribution of letters to users through the mail distribution service.
But we would not like to send letters through this system that refer to letters initiated by the users themselves. Such as mail confirmation, password recovery, and so on, because if a user unsubscribes from the mailing list using the service link in the letter, then we will not be able to send him a letter of this type without sending a preliminary request for resubscription.
The approximate number of users is 500 in the near future and let's say 2000 within six months.
Who has experience of how Yandex reacts to mailing letters of this nature?
Is it worth it all the same to immediately send such letters through the mail service?
Thanks to.

Answer 1

https://yandex.ru/support/pdd/domain/distrib.html
Where is at least one word about some kind of "site"?

Answer 2

Yandex. Mail allows you to send 500 letters per day, but not all at once, but 50 letters per send. Contacts must be in your address book, then you can create groups, each with 50 addresses, when sending, you only need to specify the name of the group. However, this method is unlikely to be suitable for commercial mailings, since the mail service algorithms are likely to block them.