[horde] Problems with Ingo - backends.php

[info@web-front.de]

Hello,

i'm installed the new Ingo version 1.1.1 
I have 2 rules. My .procmailrc Script on the Mailserver:
# Von Ingo erzeugtes procmail Script (May 4, 2006, 8:38 am)
PATH=/usr/bin

DEFAULT=$HOME/

##### Test1 #####
:0
* ^From:.*xx\.xxx at gmx\.de
Test1

##### Test2 #####
:0
* ^From:.*user at xx-yyy\.de
Test2


When i send a mail from an other Mailaccount, in the Homedirectory (/home/<username>) on the Mailserver are 3 new Folders (new, cur, tmp)
And so i must subscribe this Folders with a local Emailclient (e.g. Thunderbird). This is not so good for my users. I will that the Emails lands in the "Posteingang"

On the Mailserver runs sendmail 8.12 with procmail.
in the Folder var/spool/mail/<username> is one file with the username and in the /home/<username> are other Folders (e.g. sent-mail, mail, 
and other IMAP-Folders)

I have a problem to configure the backends.
in the /ingo/config/backends.php i enable the procmailrc script:

$backends['procmail'] = array(
    'driver' => 'vfs',
    'preferred' => 'mail.my-domain.de',
    'hordeauth' => true,
    'params' => array(
        // Hostname of the VFS server
        'hostspec' => 'mail.my-domain.de',
        // Name of the procmail config file to write
        'filename' => '.procmailrc',
        // Port of the VFS server
        'port' => 21,
        // The VFS driver to use
        'vfstype' => 'ftp'
        // The VFS username to use, defaults to current user
        // 'username' => 'user',
        // The VFS password to use, defaults to current user's password
        // 'password' => 'secret',
        // The path to the .procmailrc filter file, defaults to the current
        // user's home directory.
        // You can use the following variables:
        //   %u = name of the current user
        //   %U = the 'username' from above
        // Example:
        //   '/data/procmail/filters/%u/'
        //   This would be translated into:
        //   '/data/procmail/filters/<logged_in_username>/.procmailrc'
        //'vfs_path' => '/usr/bin/procmail/',
    ),
    'script' => 'procmail',
    'scriptparams' => array(
        // What path style does the IMAP server use ['mbox'|'maildir']?
        'path_style' => '',
        // An array of variables to append to every generated script.
        // Use if you need to set up specific environment variables.
        'variables' => array(
            // Example for the $PATH variable
            'PATH' => '/usr/bin',
            // Example for the $DEFAULT variable
            'DEFAULT' => '$HOME/',
        )
    )

Can help my to configure the backends.php file
Please, help me.

Kind Regards
Thomas