From 1eb46d98ef5b8e6c62af409770e1069fecffb845 Mon Sep 17 00:00:00 2001
From: Andreas Knuth <andreas.knuth@gmail.com>
Date: Fri, 14 Aug 2026 17:21:15 +0200
Subject: [PATCH] new config_url

---
 .../plugins/email_config/email_config.php     | 24 +++++++++++++++----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/DMS/docker-data/roundcube/plugins/email_config/email_config.php b/DMS/docker-data/roundcube/plugins/email_config/email_config.php
index b5a7732..866d7fd 100644
--- a/DMS/docker-data/roundcube/plugins/email_config/email_config.php
+++ b/DMS/docker-data/roundcube/plugins/email_config/email_config.php
@@ -32,13 +32,27 @@ class email_config extends rcube_plugin
     function email_config_form()
     {
         $rcmail = rcube::get_instance();
-        $email = $rcmail->user->get_username();
+        $email  = $rcmail->user->get_username();
+
         $secret_key = 'SHARED_SECRET_KEY_987654321';
-        $config_url = 'https://config.email-bayarea.com';
-        $expires = time() + 3600;
-        $data = $email . '|' . $expires;
+
+        // mailadmin.<domain der adresse>, z.B. support@bayarea-cc.com
+        // -> https://mailadmin.bayarea-cc.com
+        $at = strrpos($email, '@');
+        if ($at === false) {
+            // Roundcube liefert ausnahmsweise keinen vollen Namen: hier kann kein
+            // sinnvoller Link gebaut werden.
+            return '';
+        }
+        $domain     = strtolower(substr($email, $at + 1));
+        $config_url = 'https://mailadmin.' . $domain;
+
+        $expires   = time() + 3600;
+        $data      = $email . '|' . $expires;
         $signature = hash_hmac('sha256', $data, $secret_key);
-        $url = $config_url . '/?email=' . urlencode($email) . '&expires=' . $expires . '&signature=' . $signature;
+        $url = $config_url . '/?email=' . urlencode($email)
+            . '&expires=' . $expires
+            . '&signature=' . $signature;
 
         $out = '
         <div class="box" style="max-width: 600px; margin: 40px auto; padding: 30px; background: #fff; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1);">