Make Mailhog actually work

Fixes #5

docker-compose.yml

@@ -9,6 +9,7 @@ services:
     dns: 4.2.2.4
     volumes:
       - "./entrypoint.sh:/usr/local/bin/entrypoint.sh:z"
+      - "./mailhog-smtp.php:/var/www/html/wp-content/mu-plugins/mailhog-smtp.php:z"
       - "./wp-content:/var/www/html/wp-content/:z"
       - "./composer.json:/var/www/html/composer.json:z"
       - "./composer.lock:/var/www/html/composer.lock:z"

mailhog-smtp.php

@@ -0,0 +1,22 @@
+<?php
+// Send outgoing mails through Mailhog
+
+function action_wp_mail_failed($wp_error) {
+    print_r($wp_error, true);
+    exit;
+}
+add_action('wp_mail_failed', 'action_wp_mail_failed', 10, 1);
+
+add_action('phpmailer_init', function ($phpmailer) {
+    $phpmailer->isSMTP();
+    $phpmailer->SMTPAuth = false;
+    $phpmailer->SMTPSecure = false;
+    $phpmailer->SMTPAutoTLS = false;
+    $phpmailer->Host = "mailhog";
+    $phpmailer->Port = 1025;
+    $phpmailer->From = "noreply@radhr.localhost";
+    $phpmailer->FromName = "noreply@radhr.localhost";
+    $phpmailer->Username = null;
+    $phpmailer->Password = null;
+});
+