Configure WordPress on Valet to use MailHog

use-mailhog.php

<?php
/**
 * @link
 * @since             1.0.0
 * @package           TODO
 *
 * @wordpress-plugin
 * Plugin Name:       Use MailHog
 * Description:       Configure WordPress on Valet to use MailHog
 * Version:           1.0.0
 * Tags: local, email
 */

if ( ! function_exists( 'phpmailer_use_mailhog' ) ) {
	add_action( 'phpmailer_init', 'phpmailer_use_mailhog', 10, 1 );
	function phpmailer_use_mailhog( $phpmailer ) {
		// Define that we are sending with SMTP
		$phpmailer->isSMTP();

		// The hostname of the mailserver
		$phpmailer->Host = 'localhost';

		// Use SMTP authentication (true|false)
		$phpmailer->SMTPAuth = false;

		// SMTP port number
		// Mailhog normally run on port 1025
		$phpmailer->Port = defined( 'WP_DEBUG' ) && WP_DEBUG ? '1025' : '25';

		// Username to use for SMTP authentication
		// $phpmailer->Username = 'yourusername';

		// Password to use for SMTP authentication
		// $phpmailer->Password = 'yourpassword';

		// The encryption system to use - ssl (deprecated) or tls
		// $phpmailer->SMTPSecure = 'tls';

		// Change the from address
		// $phpmailer->From = 'site_adm@wp.local';
		// $phpmailer->FromName = 'WP DEV';
	}
}