TAKAHIRO

EmailZap is a simple and lightweight plugin that replaces WordPress’s default mail sending with SMTP. 
You can easily configure SMTP host, port, encryption method, authentication, username, and password from the admin settings page.
Passwords are encrypted using AES-256-CBC before being saved to the database, enhancing your site’s security.

EmailZap

A lightweight and secure plugin that switches your WordPress email sending to SMTP. Configure your SMTP server easily from the admin panel.

Gaiaz Iusipov

This plugin gives you the easiest way to send emails through the Yandex SMTP server instead of PHP mail().
This plugin requires at least PHP 5.4 and PHP mod_ssl to be enabled

Yandex Mail

This plugin gives you the easiest way to send emails through the Yandex SMTP server instead of PHP mail().

EmailZap vs Yandex Mail