Fixed: FS#647 - Autoresponder limited to only 256 characters.

install/sql/ispconfig3.sql

@@ -480,8 +480,8 @@ CREATE TABLE `mail_user` (
   `quota` int(11) NOT NULL default '0',
   `homedir` varchar(255) NOT NULL,
   `autoresponder` enum('n','y') NOT NULL default 'n',
-  `autoresponder_text` tinytext NULL,
-  `custom_mailfilter` text,
+  `autoresponder_text` mediumtext NULL,
+  `custom_mailfilter` mediumtext,
   `postfix` enum('n','y') NOT NULL,
   `access` enum('n','y') NOT NULL,
   `disableimap` enum('0','1') NOT NULL default '0',