Firdaus Zahari

The plugin allows you to disable selected users from your site’s user list. A disabled user will NOT be allowed to:
<ul>
<li>Log in to the site</li>
<li>Reset their associated password</li>
<li>Create a new application password</li>
</ul>
In addition, they’ll also automatically logged out from all sessions as soon as they are disabled.

FS Disable Users

Disable selected users from various site activities including preventing them from logging in, resetting passwords, and creating application passwords …

3D Virge

With this plugin you can switch the different WordPress notification e-mails on and off, like options as the new user and password change notifications send by WordPress to the administrator and user. Works perfectly in combination with a lot of other plugins!
Watch this nice tut made by Robert Orzanna: 
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/66UkQKgSFio?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
The options you can manage are:
<ol>
<li>New user notification to admin</li>
<li>New user notification to user</li>
<li>Notify post author</li>
<li>Notify moderator</li>
<li>Password change notification to admin</li>
<li>Password change notification to user</li>
<li>E-mail address change notification to user</li>
<li>Forgotten password e-mail to user</li>
<li>Forgotten password e-mail to administrator</li>
<li>Automatic WordPress core update e-mail</li>
<li>Automatic WordPress plugin update e-mail</li>
<li>Automatic WordPress theme update e-mail</li>
<li>Send admin notifications to extra admin e-mail addresses (1.7.0)</li>
<li>Send an e-mail to administrators after a user requested to update his or her e-mail address (1.7.0)</li>
<li>Send an e-mail to administrators after a user successfully updated his or her e-mail address (1.7.0)</li>
<li>Multi-site support! Now you can manage your notification settings in one single environment (1.8.0)</li>
<li>Export and import settings (1.8.0)</li>
</ol>
The automatic core, plugin, and theme updates have a special built-in feature. When one of these options is disabled, successful e-mails don’t get send out, but failed updates still will send an e-mail to the admin.
This version contains some nice new stuff. If you find any issues, let me know. If you like the new features, please be so kind to give this plugin a good rating! It will help me to keep up the good work for you 🙂
Want regular updates? Feel free to support me with a small donation 🙂

Manage Notification E-mails

Enable and disable email notifications that WordPress sends to the admin and user. Works perfectly with many other plugins!

FS Disable Users vs Manage Notification E-mails