[imp] problem displaying quota

[Riccardo Cozzani]

Hi all,

I can't figure how to make quota working with IMP and Courier 4.1.1.  
I'm running Horde 3.1.3 and Imp 4.1.3 from horde-webmail package. SO  
is Linux.

IMAP quota seams to work fine:

[root at ldc imp]# telnet 0 143
Trying 0.0.0.0...
Connected to 0 (0.0.0.0).
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1] Courier-IMAP ready. Copyright 1998-2005  
Double Precision, Inc.  See COPYING for distribution information.
0001 login user password
0001 OK LOGIN Ok.
0002 GETQUOTA ROOT
* QUOTA "ROOT" (STORAGE 444275 512000 MESSAGE 25030 50000)
0002 OK GETQUOTA Ok.
0003 logout
* BYE Courier-IMAP server shutting down
0003 OK LOGOUT completed
Connection closed by foreign host.

But Imp pages always reports "Unable to retrieve quota" error  
messages. This is my servers.php:

$servers['imap'] = array(
     'name' => 'IMAP Server',
     'server' => 'localhost',
     'hordeauth' => full,
     'protocol' => 'imap/notls',
     'port' => 143,
     'maildomain' => '',
     'realm' => '',
     'preferred' => '',
     'dotfiles' => false,
     'quota' => array(
         'driver' => 'courier',
         'params' => array(
             'login' => '',
             'password' => ''
         )
     )
);

I've tried some other variants like:

     'quota' => array(
         'driver' => 'courier',
         'params' => array()
         )
     )

and

    'quota' => array(
         'driver' => 'courier'
         )
     )

but I always receive the same error messages.

Have you some suggestions for this?

Thanks,
Riccardo