E-Mail Catching

This service was created to catch e-mails on the SMTP ports from any local source and display them in a simple viewer within a browser. You can read more about it here.

To make this service part of the Proxy-Stack, use the DockerExec spawn mailcatcher command and follow the instructions. Don’t forget to restart the Proxy-Network, if done.

Then configure the service in your projects. Current use-cases include mails sent by Symfony and WordPress.

Symfony

In your projects .env file set MAILER_DSN=smtp://mailcatcher:25. That’s it.

WordPress

Two options:

Install the Plugin WP Mail SMTP, use the option “Other SMTP” and set the variable “SMTP HOST” to proxy-smtp and “SMTP Port” to 25. Then deactivate “Auto TLS” and “Authentication”.

Create your own plugin with this code snippet:

<?php
/**
 * Proxy SMTP Adapter
 *
 * @package nginx-proxy
 * @license GPLv3
 *
 * @wordpress-plugin
 * Plugin Name: Proxy SMTP Adapter
 * Description: Configure WordPress to send emails to the Mailcatcher available at the host name "proxy-smtp"
 * Version: 1.0.0
 * Text Domain: nginx-proxy
 * License: GPLv3
 * License URI: http://www.gnu.org/licenses/gpl-3.0.txt
 */

/**
 * Configure WordPress to send emails to the Mailcatcher available at the host name "proxy-smtp".
 *
 * @param PHPMailer $phpmailer The PHPMailer instance.
 */
function proxy_smtp_config( $phpmailer ) {
    $phpmailer->isSMTP();
    $phpmailer->Host     = 'proxy-smtp';
    $phpmailer->SMTPAuth = false;
    $phpmailer->Port     = 25;
}
add_action( 'phpmailer_init', 'proxy_smtp_config' );