diff --git a/bin/inspect.php b/bin/inspect.php
new file mode 100755
--- /dev/null
+++ b/bin/inspect.php
@@ -0,0 +1,170 @@
+#!/usr/bin/env php
+<?php
+/*
+ +--------------------------------------------------------------------------+
+ | Kolab Sync (ActiveSync for Kolab)                                        |
+ |                                                                          |
+ | Copyright (C) 2024, Apheleia IT AG <contact@apheleia-it.ch>         |
+ |                                                                          |
+ | This program is free software: you can redistribute it and/or modify     |
+ | it under the terms of the GNU Affero General Public License as published |
+ | by the Free Software Foundation, either version 3 of the License, or     |
+ | (at your option) any later version.                                      |
+ |                                                                          |
+ | This program is distributed in the hope that it will be useful,          |
+ | but WITHOUT ANY WARRANTY; without even the implied warranty of           |
+ | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the             |
+ | GNU Affero General Public License for more details.                      |
+ |                                                                          |
+ | You should have received a copy of the GNU Affero General Public License |
+ | along with this program. If not, see <http://www.gnu.org/licenses/>      |
+ +--------------------------------------------------------------------------+
+ | Author: Christian Mollekopf <mollekopf@apheleia-it.ch>                      |
+ +--------------------------------------------------------------------------+
+*/
+
+
+define('RCUBE_INSTALL_PATH', realpath(dirname(__FILE__) . '/../') . '/');
+define('RCUBE_PLUGINS_DIR', RCUBE_INSTALL_PATH . 'lib/plugins/');
+
+// Define include path
+$include_path  = RCUBE_INSTALL_PATH . 'lib' . PATH_SEPARATOR;
+$include_path .= RCUBE_INSTALL_PATH . 'lib/ext' . PATH_SEPARATOR;
+$include_path .= ini_get('include_path');
+set_include_path($include_path);
+
+// include composer autoloader (if available)
+if (@file_exists(RCUBE_INSTALL_PATH . 'vendor/autoload.php')) {
+    require RCUBE_INSTALL_PATH . 'vendor/autoload.php';
+}
+
+// include global functions from Roundcube Framework
+require_once 'Roundcube/bootstrap.php';
+
+$opts = rcube_utils::get_opt([
+    'e' => 'email',
+    'p' => 'adminpassword',
+]);
+
+if (empty($opts['email'])) {
+    rcube::raise_error("Email address not specified (--email).", false, true);
+}
+$email = $opts['email'];
+if (empty($opts['adminpassword'])) {
+    rcube::raise_error("Admin password not specified (--adminpassword).", false, true);
+}
+$password = $opts['adminpassword'];
+
+$rcube = rcube::get_instance();
+$default_port = $rcube->config->get('default_port', 143);
+$default_host = $rcube->config->get('default_host');
+$user = "cyrus-admin";
+$imap = new \rcube_imap_generic();
+$options['auth_cid'] = $user;
+$options['auth_pw'] = $password;
+$options['auth_type'] = 'PLAIN';
+$options['port'] = $default_port;
+$imap->setDebug(true);
+if (!$imap->connect($default_host, $email, $password, $options)) {
+    rcube::raise_error("Failed to connect to imap.", false, true);
+}
+
+$rcube = \rcube::get_instance();
+$db    = $rcube->get_dbh();
+
+$select = $db->query(
+    "SELECT `user_id` FROM `users`"
+    . " WHERE `username` = ?"
+    . " ORDER BY `user_id` DESC",
+    \strtolower($email)
+);
+
+if ($data = $db->fetch_assoc($select)) {
+    $userid = $data['user_id'];
+} else {
+    rcube::raise_error("User not found: $user.", false, true);
+}
+
+print($userid);
+
+$devicesSelect = $db->query(
+    "SELECT `id`, `deviceid`, `devicetype` FROM `syncroton_device`"
+    . " WHERE `owner_id` = ?",
+    $userid
+);
+
+$result = [];
+while ($data = $db->fetch_assoc($devicesSelect)) {
+    $deviceid = $data["deviceid"];
+    $device_id = $data["id"];
+
+    $result[$device_id]['deviceid'] = $deviceid;
+    $result[$device_id]['devicetype'] = $data["devicetype"];
+
+    $select = $db->limitquery(
+        "SELECT `counter`, `lastsync` FROM `syncroton_synckey`"
+        . " WHERE `device_id` = ? AND `type` = 'FolderSync'"
+        . " ORDER BY `counter` DESC",
+        0,
+        1,
+        $device_id
+    );
+
+    if ($data = $db->fetch_assoc($select)) {
+        $result[$deviceid]['FolderSync'] = [
+            "counter" => $data['counter'],
+            "lastsync" => $data['lastsync'],
+        ];
+    } else {
+        echo("Synckey not found.\n");
+    }
+
+    $folderSelect = $db->query(
+        "SELECT * FROM `syncroton_folder`"
+        . " WHERE `device_id` = ?",
+        $device_id
+    );
+
+
+
+
+    while ($folder = $db->fetch_assoc($folderSelect)) {
+        $select = $db->limitquery(
+            "SELECT `counter`, `lastsync`, `extra_data` FROM `syncroton_synckey`"
+            . " WHERE `device_id` = ? AND `type` = ?"
+            . " ORDER BY `counter` DESC",
+            0,
+            1,
+            $device_id,
+            $folder['id']
+        );
+
+        if ($data = $db->fetch_assoc($select)) {
+            $result[$device_id]['folders'][$folder['id']] = [
+                "counter" => $data['counter'],
+                "lastsync" => $data['lastsync'],
+                "modseq" => $data['extra_data'] ? json_decode($data['extra_data'])->modseq : null,
+            ];
+        }
+
+        $result[$device_id]['folders'][$folder['id']]['name'] = $folder['displayname'];
+
+        $imap->select($folder['displayname']);
+        $result[$device_id]['folders'][$folder['id']]['imapModseq'] = $imap->data['HIGHESTMODSEQ'] ?? null;
+        $result[$device_id]['folders'][$folder['id']]['imapMessagecount'] = $imap->data['EXISTS'] ?? null;
+
+        $select = $db->query(
+            "SELECT count(*) FROM `syncroton_content`"
+            . " WHERE `device_id` = ? AND `folder_id` = ?",
+            $device_id,
+            $folder['id']
+        );
+
+        if ($data = $db->fetch_assoc($select)) {
+            $result[$device_id]['folders'][$folder['id']]['contentCount'] = array_values($data)[0];
+        }
+    }
+}
+
+var_export($result);
+