static public $spool_tmax = 10;
static public $spool_boxlist = true;
+### Tree options ###
+ static public $tree_read = '';
+ static public $tree_unread = 'r';
+
### Message processing ###
static public $msgparse_headers = array('content-disposition', 'content-transfer-encoding',
'content-type', 'content-id', 'date', 'followup-to',