Can you help me with Yandex mail?

Question

Yandex

Hello, please congratulate me. Now I'm connected to Yandex Connect!

Question 1) How can I transfer old emails from my hosting to mail from Yandex Connect?
Question 2) How can I enter my mail through a regular program? What is the server address and what ports should I enter?
Question 3) Earlier, from the hosting, by selecting mail, I could go to the mail I selected without passwords and logins. Understood yes? This could be done on CPanel, now the customer wants the same -_-

Thank you very much!

Answer 1

To the first question https://yandex.ru/support/pdd/domain/import.html
To the second question https://yandex.ru/support/mail-new/mail-clients.html
To the third - no way without a password, but password the domain owner can always change the password of any mailbox to the one known to him and go to see