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().

icopydoc

This plugin allows you to create XML feeds for Google Merchant Center and Facebook.
IMPORTANT: The plugin Woocommerce is required!
PRO version: <a href="https://icopydoc.ru/product/plagin-xml-for-google-merchant-center-pro/?utm_source=wp-repository&utm_medium=content&utm_campaign=xml-for-google-merchant-center&utm_content=readme&utm_term=pro-version" rel="nofollow ugc">https://icopydoc.ru/product/plagin-xml-for-google-merchant-center-pro/</a>
<h4>Format and method requirements for product data feeds</h4>
For a better understanding of the principles of XML feed – read this: 
<a href="https://support.google.com/merchants/answer/7052112" rel="nofollow ugc">https://support.google.com/merchants/answer/7052112</a>

XML for Google Merchant Center

Good

Creates a XML feed that allows merchants to easily display their products across Google’s network.

Yandex Mail vs XML for Google Merchant Center