diff --git a/lib/Autodiscover.php b/lib/Autodiscover.php
--- a/lib/Autodiscover.php
+++ b/lib/Autodiscover.php
@@ -48,6 +48,11 @@
                 $type = 'Microsoft';
                 break;
             }
+            // Microsoft Autodiscover V2
+	    elseif (stripos($uri, 'autodiscover.json') !== false) {
+                $type = 'Json';
+                break;
+            }
             // Mozilla Thunderbird (Kmail/Kontact/Evolution)
             else if (strpos($uri, 'config-v1.1.xml') !== false) {
                 $type = 'Mozilla';
diff --git a/lib/AutodiscoverJson.php b/lib/AutodiscoverJson.php
new file mode 100644
--- /dev/null
+++ b/lib/AutodiscoverJson.php
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ +--------------------------------------------------------------------------+
+ | Kolab Autodiscover Service                                               |
+ |                                                                          |
+ | Copyright (C) 2011-2014, Kolab Systems AG <contact@kolabsys.com>         |
+ |                                                                          |
+ | This program is free software: you can redistribute it and/or modify     |
+ | it under the terms of the GNU 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 General Public License for more details.                             |
+ |                                                                          |
+ | You should have received a copy of the GNU General Public License        |
+ | along with this program. If not, see http://www.gnu.org/licenses/.       |
+ +--------------------------------------------------------------------------+
+ | Author: Aleksander Machniak <machniak@kolabsys.com>                      |
+ +--------------------------------------------------------------------------+
+*/
+
+/**
+ * Autodiscover Service class for Microsoft Autodiscover V2
+ */
+class AutodiscoverJson extends Autodiscover
+{
+
+    public function handle_request()
+    {
+        if (preg_match('|autodiscover.json/v1.0/([^\?]+)|', $_SERVER['REQUEST_URI'], $regs)) {
+            $this->email = $regs[1];
+        }
+
+        Log::debug('Request [json]: ' . $_SERVER['REQUEST_URI']);
+    }
+
+    /**
+     * Generates JSON response
+     */
+    protected function handle_response()
+    {
+        if (strtolower($_GET['Protocol']) == 'activesync'
+            && !empty($this->config['activesync'])
+        ) {
+            if (!preg_match('/^https?:/i', $this->config['activesync'])) {
+                $this->config['activesync'] = 'https://' . $this->config['activesync'] . '/Microsoft-Server-ActiveSync';
+            }
+            $json = array(
+                'Protocol' => 'ActiveSync',
+                'Url' => $this->config['activesync']
+            );
+        }
+        elseif (strtolower($_GET['Protocol']) == 'autodiscoverv1') {
+            $json = array(
+                'Protocol' => 'ActiveSync',
+                'Url' => 'https://' . $_SERVER['HTTP_HOST'] . '/Autodiscover/Autodiscover.xml'
+            );
+        }
+        else {
+            http_response_code(400);
+            $json = array(
+                'ErrorCore' => 'InvalidProtocol',
+                'ErrorMessage' => 'The given protocol value \u0027'
+                    . $_GET['Protocol']
+                    . '\u0027 is invalid. Supported values are \u0027'
+                    . (!empty($this->config['activesync']) ? 'ActiveSync,' : '')
+                    . 'AutodiscoverV1\u0027'
+            );
+        }
+
+        $response = json_encode($json, JSON_PRETTY_PRINT);
+        Log::debug('Response [json]: ' . $response);
+
+        header('Content-Type: application/json');
+        echo $response;
+        exit;
+    }
+}