Basic Google Analytics tracking for mailto: links

wp-amplify-ga-tracking.php

<?php
/**
 * Plugin Name: WPAmplify GA Tracking
 * Plugin URI: https://gist.github.com/macbookandrew/84ce54d73713d82b390fc9dc29b19e12/
 * Description: Basic Google Analytics tracking for mailto: links
 * Version: 1.0.0
 * Author: AndrewRMinion Design
 * Author URI: https://andrewrminion.com
 * Copyright: 2017 AndrewRMinion Design

 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

defined( 'ABSPATH' ) or die( 'No access allowed' );

/**
 * Add tracking to mailto: links
 */
function wpamplify_ga_script() {
    wp_add_inline_script( 'jquery-core', '
    (function($) {
        $(document).ready(function(){
            $("a[href^=\'mailto\']").on("click", ga("send", "event", { eventCategory: "email", eventAction: "click"});)
        });
    })(jQuery);
    ' );
}
add_action( 'wp_enqueue_scripts', 'wpamplify_ga_script' );