Configure WordPress #wp_mail function to send through #SMTP server https://b.utler.co/Y3

wp_config.php

<?php

/*
 * Set the following constants in wp-config.php.
 * These should be added somewhere BEFORE the constant ABSPATH is defined.
 *
 * Author:     Chad Butler
 * Author URI: https://butlerblog.com
 *
 * For more information and instructions, see: https://b.utler.co/Y3
 */

define( 'SMTP_USER',   'user@example.com' );    // Username to use for SMTP authentication
define( 'SMTP_PASS',   'smtp password' );       // Password to use for SMTP authentication
define( 'SMTP_HOST',   'smtp.example.com' );    // The hostname of the mail server
define( 'SMTP_FROM',   'website@example.com' ); // SMTP From email address
define( 'SMTP_NAME',   'e.g Website Name' );    // SMTP From name
define( 'SMTP_PORT',   '25' );                  // SMTP port number - likely to be 25, 465 or 587
define( 'SMTP_SECURE', 'tls' );                 // Encryption system to use - ssl or tls
define( 'SMTP_AUTH',    true );                 // Use SMTP authentication (true|false)
define( 'SMTP_DEBUG',   0 );                    // for debugging purposes only set to 1 or 2

wp_mail_smtp.php

/**
 * This function will connect wp_mail to your authenticated
 * SMTP server. This improves reliability of wp_mail, and 
 * avoids many potential problems.
 *
 * Values are constants set in wp-config.php. Be sure to
 * define the using the wp_config.php example in this gist.
 *
 * Author:     Chad Butler
 * Author URI: https://butlerblog.com
 *
 * For more information and instructions, see: https://b.utler.co/Y3
 */
add_action( 'phpmailer_init', 'send_smtp_email' );
function send_smtp_email( $phpmailer ) {
	if ( ! is_object( $phpmailer ) ) {
		$phpmailer = (object) $phpmailer;
	}

	$phpmailer->Mailer     = 'smtp';
	$phpmailer->Host       = SMTP_HOST;
	$phpmailer->SMTPAuth   = SMTP_AUTH;
	$phpmailer->Port       = SMTP_PORT;
	$phpmailer->Username   = SMTP_USER;
	$phpmailer->Password   = SMTP_PASS;
	$phpmailer->SMTPSecure = SMTP_SECURE;
	$phpmailer->From       = SMTP_FROM;
	$phpmailer->FromName   = SMTP_NAME;
}

This doesn't work for me. I've implemented exactly as shown, but I get this:

`[0] => Invalid address:  (From): wordpress@localhost`

I was forced to implement these hooks as well:

add_filter('wp_mail_from', 'set_wp_mail_from');
function set_wp_mail_from($current_from) {
	if (SMTP_FROM) { 
		return SMTP_FROM;
	}
	throw new Exception('SMTP_FROM not detected...');
}

add_filter('wp_mail_from_name', 'set_wp_mail_from');
function set_wp_mail_from_name($current_from_name) {
	if (SMTP_NAME) {
		return SMTP_NAME;	
	}
	throw new Exception('SMTP_NAME not detected...');
}