Mehdi Kabab

By default WordPress sends moderation request of new comments to the e-mail address defined in the <a href="https://codex.wordpress.org/Settings_General_SubPanel" title="Settings General SubPanel « WordPress Codex" rel="nofollow ugc">General Settings Subpanel</a>. However, you do not have an email address shared between your administrators or a mailing list. In this case, the plugin Notification to all Administrators has been created for you!
Also, WordPress sends notifications to the author of the post only. With the plugin Notification to all Administrators, all your administrators receive this notification.
Note: This plugin does not overwrites functions like <code>wp_mail</code>, or <code>wp_notify_moderator</code>.
<h4>Requirements</h4>
Notification to all Administrators requires <code>PHP5</code>.

Notifications to all Administrators

Enable moderation requests and notifications by email to all administrators.

Nicolas Bouliane

Displays a custom message on the dashboard with full HTML/PHP/JavaScript support. Useful for administrator who have clients as users.
The plugin will display anything that’s in the message.php file in the plugin’s directory. Since the plugin uses a simple include, 
any kind of content is supported.

Dashboard Message

Displays a custom message on the dashboard with full HTML/PHP/JavaScript support. Useful for administrator who have clients as users.

Notifications to all Administrators vs Dashboard Message