[imp] IMP IMAP Login Problem

[lists at bdd-music.de]

Hi,

I've downloaded Horde Groupware Webmail Edition two days ago. A problem occurred
during the installation and I spent a lot of hours trying to fix it. I did
choose the latest stable release 1.0.1.

After I did run the setup script I tried to login to horde and failed. I
narrowed it down to IMP as it does the authentification in the configuration
shipping with Horde. I hotfixed it by now using a MySQL database for
authentification, so I can use the calendar 'n stuff. But I still can't use the
webmail system.

I did run the test script provided by IMP and it assured me that IMAP is working
fine with exactly the same login params I use in the login form.

test.php output (excerpt):

=====================================================================
    * Trying protocol imap/notls, Port 143:

          SUCCESS - INBOX has 12 messages (0 new 0 recent)

[.....]

The following configurations were successful and may be used in your
imp/config/servers.php file:

    Configuration 1

        'server' => 'localhost'
        'protocol' => 'imap/notls'
        'port' => '143'
=====================================================================

So I put the configuration in my imap/config/server.php file:

=====================================================================

$servers['imap'] = array(
    'name' => 'BDD-Music.de IMAP',
    'server' => 'localhost',
    'hordeauth' => false,
    'protocol' => 'imap/notsl',
    'port' =>'143',
    'maildomain' => 'bdd-music.de',
);
=====================================================================

I tried altering the the hordeauth parameter from 'false' to 'true' to 'full'
but nothing worked.

Note: My IMAP username is like "name at domain.com" so I have to make sure that IMP
is using exactly the username I enter in the login form. I don't know which
hordeauth-value does the job.

Anyway, here is what /tmp/Horde.log says about the login try:

=====================================================================

Mar 21 23:48:04 HORDE [error] [imp] FAILED LOGIN 77.128.1.215 to
localhost:143[imap/notsl] as martin at bdd-music.de [on line 258 of
"/home/httpd/vhosts/bdd-music.de/httpsdocs/horde/imp/lib/Auth/imp.php"]
======================================================================

So the test script can login but the real IMP cannot. Does anyone have a glace
what could be the problem here?

Greetings and thanks for answers

Martin