+ * 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;
+
+/**
+ * Output Buffering
+ *
+ * In some cases, buffering all output allows more complex functionality,
+ * especially for plugins that want to add headers on hooks that are beyond
+ * the point of output having been sent to the browser otherwise (although
+ * most plugins that need this feature will turn it on automatically by
+ * themselves).
+ *
+ * It is also possible to define a custom output handler as needed by special
+ * environments. If $buffered_output_handler is non-empty, a function named
+ * the same as the value of $buffered_output_handler should be defined in
+ * config_local.php.
+ *
+ */
+$buffer_output = false;
+$buffered_output_handler = '';
+
+/**
+ * Allow Remote configtest Access
+ *
+ * Controls remote configuration checks
+ * @global boolean $allow_remote_configtest
+ * @since 1.5.1
+ */
+$allow_remote_configtest = false;
+
+/**
+ * SquirrelMail Debug Mode
+ *
+ * Various debugging levels can be enabled using this setting.
+ * More than one mode can be used at once by combining them
+ * with pipes ("|"). See the SM_DEBUG_MODE_* constants in
+ * include/constants.php
+ */
+$sm_debug_mode = SM_DEBUG_MODE_OFF;
+
+/**
+ * "Secured Configuration" Mode
+ *
+ * Enable/disable "Secured Configuration" mode, wherein certain
+ * security-sensitive configuration settings are made immutable
+ * by other code.
+ */
+$secured_config = true;
+
+/**
+ * HTTPS Port
+ *
+ * This is the HTTPS (SSL-secured HTTP) port. It can be left empty,
+ * in which case SquirrelMail will assume the standard port 443.
+ * Make sure to set this correctly when serving HTTPS on a non-
+ * standard port.
+ */
+$sq_https_port = 443;
+
+/**
+ * Ignore HTTP_X_FORWARDED_* headers?
+ *
+ * Whether or not HTTP_X_FORWARDED_* headers are respected by
+ * SquirrelMail (or plugins).
+ */
+$sq_ignore_http_x_forwarded_headers = true;
+
+/**
+ * Subscribe Listing Control
+ *
+ * this disables listing all of the folders on the IMAP Server to
+ * generate the folder subscribe listbox (this can take a long time
+ * when you have a lot of folders). Instead, a textbox will be
+ * displayed allowing users to enter a specific folder name to subscribe to
+ *
+ * This option can't be changed by conf.pl
+ * @global bool $no_list_for_subscribe
+ */
+$no_list_for_subscribe = false;
+
+/**
+ * Color in config control
+ *
+ * This option is used only by conf.pl script to generate configuration
+ * menu with some colors and is provided here only as reference.
+ * @global integer $config_use_color