How to Set Up Yandex Email
To set up your email account on macOS or Windows, first download and install the Postbox desktop email app. Next, from the File menu select New > Mail Account, then enter the email settings outlined below.
Yandex Settings for iCloud
Incoming Server – IMAP
Server: imap.yandex.ru
Port: 993
Security: SSL/TLS
Username: Your username (not email)
Password: Your password
Outgoing Server – SMTP
Server: smtp.yandex.ru
Port: 465
Security: SSL/TLS
Username: Your username (not email)
Password: Your password