Simple PHPMailer SMTP mu-plugin

phpmailer-smtp.php

<?php

use function Env\env;

/**
 * Plugin Name:  PHPMailer SMTP
 * Plugin URI:   https://roots.io/bedrock/
 * Description:  Simple PHPMailer SMTP configuration for Bedrock.
 * Version:      1.0.0
 * Author:       Roots
 * Author URI:   https://roots.io/
 * License:      MIT License
 */

add_filter('phpmailer_init', function ($mail) {
    $mail->isSMTP();

    $mail->SMTPAuth = true;
    $mail->Host = env('WP_ENV') === 'development' ? 'localhost' : env('WP_SMTP_HOST');
    $mail->Port = env('WP_ENV') === 'development' ? 1025 : 587;
    $mail->Username = env('WP_SMTP_USERNAME');
    $mail->Password = env('WP_SMTP_PASSWORD');
    $mail->Timeout = 10;

    $mail->setFrom(
        env('WP_SMTP_FORCEFROM'),
        env('WP_SMTP_FORCEFROMNAME')
    );
});