+ * Lossy Encoding Control
+ *
+ * This option allows charset conversions when output charset does not support
+ * all symbols used in original charset. Symbols unsupported by output charset
+ * will be replaced with question marks.
+ * @global bool $lossy_encoding
+ * @since 1.5.1
+ */
+$lossy_encoding = false;
+
+/**
+ * Controls use of time zone libraries
+ *
+ * Possible values:
+ * <ul>
+ * <li>0 - default, SquirrelMail uses GNU C timezone names in
+ * TZ environment variables
+ * <li>1 - strict, SquirrelMail uses 'TZ' subkey values in TZ
+ * environment variables
+ * <li>2 - custom, SquirrelMail loads time zone data from
+ * config/timezones.php and uses time zone array keys in
+ * TZ enviroment variables
+ * <li>3 - custom strict, SquirrelMail loads time zone data from
+ * config/timezones.php and uses TZ subkey values in
+ * TZ enviroment variables
+ * </ul>
+ * Use of any other value switches to default SquirrelMail time zone
+ * handling ($time_zone_type).
+ * @global integer $time_zone_type
+ * @since 1.5.1
+ */
+$time_zone_type = 0;
+
+/**
+ * Location base
+ *
+ * This is used to build the URL to the SquirrelMail location.
+ * It should contain only the protocol and hostname/port parts
+ * of the URL; the full path will be appended automatically.
+ *
+ * If not specified or empty, it will be autodetected.
+ *
+ * Examples:
+ * http://webmail.example.org
+ * http://webmail.example.com:8080
+ * https://webmail.example.com:6691
+ *
+ * To be clear: do not include any of the path elements, so if
+ * SquirrelMail is at http://www.example.net/web/mail/src/login.php, you
+ * write: http://www.example.net
+ *
+ * @global string $config_location_base
+ * @since 1.5.2 and 1.4.8
+ */
+$config_location_base = '';
+
+/*** Tweaks ***/
+/**
+ * Iframe sandbox code control
+ *
+ * Use iframe to render html emails
+ * (temp option used during debuging of new code)
+ * @global bool $use_iframe
+ * @since 1.5.1
+ */
+$use_iframe = false;
+
+/**
+ * PHP recode functions control
+ *
+ * Use experimental code with php recode functions when reading messages with
+ * different encoding. This code is faster that original SM functions,
+ * but it require php with recode support.
+ *
+ * Don't enable this option if you are not sure about availability of
+ * recode support.
+ * @global bool $use_php_recode
+ * @since 1.5.0
+ */
+$use_php_recode = false;
+
+/**
+ * PHP iconv functions control
+ *
+ * Use experimental code with php iconv functions when reading messages with
+ * different encoding. This code is faster that original SM functions,
+ * but it require php with iconv support and works only with some translations.
+ *
+ * Don't enable this option if you are not sure about availability of
+ * iconv support.
+ * @global bool $use_php_iconv
+ * @since 1.5.0
+ */
+$use_php_iconv = false;
+
+/**
+ * Controls remote configuration checks
+ * @global boolean $allow_remote_configtest
+ * @since 1.5.1