File plesk.libkolab.inc.php of Package roundcubemail-selfcontained

<?php
    $config['kolab_freebusy_server'] = false;

    if (file_exists(RCUBE_CONFIG_DIR . '/' . ($_SERVER["HTTP_HOST"] ?? "") . '/' . basename(__FILE__))) {
        include_once(RCUBE_CONFIG_DIR . '/' . ($_SERVER["HTTP_HOST"] ?? "") . '/' . basename(__FILE__));
    }

    $config['kolab_cache'] = true;

    $config['kolab_ssl_verify_host'] = false;
    $config['kolab_ssl_verify_peer'] = false;

    $config['kolab_use_subscriptions'] = true;

    $config['kolab_skip_namespace'] = Array();

    $config['kolab_messages_cache_bypass'] = 2;

?>