Elvis Nyakangi

Since WordPress 5.5, if you have enabled plugin or theme auto-update you will receive an email notification when a plugin or them auto-update is successful or when it has failed.
If you manage a dozen of websites, then the constant stream of auto-update emails may be annoying.
This plugin seeks to cure the problem by automatically disabling plugin and themes email auto-update notifications.
All other notification will be ON. This plugin only stops plugin and theme auto-update notifications. Not core WordPress updates.
More about the Plugin
<ul>
<li>This is a lightweight plugin that is less than 2 kb and has zero effect on your website load speed </li>
<li>No settings are required. Just install the plugin, activate, and you are done. . </li>
<li>It is compatible with the latest version of WordPress. </li>
</ul>
We create simple and lightweight email tools that work without much settings. Check our <a href="https://gutoz.com" rel="nofollow ugc">simple email tools</a> that you can use for email marketing.

Disable auto-update Email Notifications

Quick way to disable the auto_plugin_update_send_email and auto_theme_update_send_email filters. Straight to the point no extra bloat.

Perfect

Simple and Effective, thanks to developer.

Simple and Effective

This plugin performs a simple task of disabling email notifications that are sent by WordPress when a plugin or theme auto-updates.

Irshad A.Khan

SUC (services updates for customers) is a plugin which auto update the subscriber for service updates through email. The customer first subscribe for your services and then he/she should be notify if admin post new comments on any service. 
you can check the <a href="http://demo.cybersourcepk.com" rel="nofollow ugc">Demo here </a>
Features:
<h4>WordPress Integration</h4>
<ul>
<li>Easy to install WordPress plugin</li>
<li>Works with any standards compliant WordPress theme</li>
<li>Plays well with other Plugins</li>
<li>100% Customizable =</li>
<li>Easy to modify templates</li>
</ul>

Services updates for customers

suc (services updates for customers) is a plugin which auto update the subscriber for service updates.

Disable auto-update Email Notifications vs Services updates for customers