docker-roundcube-server/roundcube/roundcubemail-1.3.6/public_html/index.php

<?php

/*
 +-----------------------------------------------------------------------+
 | Roundcube Webmail IMAP Client                                         |
 | Version 1.3.6                                                         |
 |                                                                       |
 | Copyright (C) 2005-2017, The Roundcube Dev Team                       |
 |                                                                       |
 | Licensed under the GNU General Public License version 3 or            |
 | any later version with exceptions for skins & plugins.                |
 | See the README file for a full license statement.                     |
 |                                                                       |
 | PURPOSE:                                                              |
 |   This is the public entry point for all HTTP requests to the         |
 |   Roundcue webmail application.                                       |
 +-----------------------------------------------------------------------+
 | Author: Thomas Bruederli <roundcube@gmail.com>                        |
 | Author: Aleksander Machniak <alec@alec.pl>                            |
 +-----------------------------------------------------------------------+
*/

define('INSTALL_PATH', realpath(__DIR__ . '/..') . '/');

// include index.php from application root directory
include INSTALL_PATH . 'index.php';