server side filter plugin problem

Hi all,

I want to use the server_side_filters plugin to do the procmail filter in the server side.

version list:
squirrelmail-webmail-1.4.22
server_settings_backend-2.0-1.4.0.tar.gz
server_side_filters-2.0beta1-1.4.0.tar.gz
compatibility-2.0.16-1.0.tar.gz

And I have enabled the server_side_filters throw config/conf.pl script.

Plugins
  Installed Plugins
    1. server_side_filters

  Available Plugins:
    2. administrator


When I use "Options" -> "Message Filters" in my web browser, after add some filter rules, and click the SAVE button, it says "Error: Error deleting file or directory"

And in my /var/log/httpd/ssl_error_log:

PHP Warning:  unlink(/): \xca\xc7\xd2\xbb\xb8\xf6\xc4\xbf\xc2\xbc in /var/www/html/webmail/functions/global.php on line 278, referer: https://mymailserver.com/webmail/plugins/server_side_filters/options.php

Here is the global.php function:

   275 function sq_call_function_suppress_errors($function, $args=array()) {
    276    $display_errors = ini_get('display_errors');
    277    ini_set('display_errors', '0');
    278    $ret = call_user_func_array($function, $args);
    279    ini_set('display_errors', $display_errors);
    280    return $ret;
    281 }
Anyone can give me some advice?

Thanks,
Bu Xiaobing


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