How to Delete a Yandex.Mail Account
Here’s how to cancel your Yandex.mail account:
Log in to the Yandex. mail account you want to delete. Select your email address and avatar near the upper-right corner of Yandex. Mail. Select Account settings from the menu that appears. Scroll all the way to the bottom of the Account Settings page, and follow the Delete account link. Review the list under The following Yandex services are currently active on your account. Copy any data you want to keep from any of these services. Yandex deletes all data listed. Enter the answer to your security question under Answer near the bottom of the page. Type the letters and numbers from the Captcha image under Enter the symbols from the picture on the left. Press Delete account. Another window will pop up asking you to confirm the account deletion again. This is your final warning. Press Delete account again to remove the account.