[horde] Change authentication from IMP (sql) to Horde Database

[Stefan Johänntgen]

Hi,

I use Horde Webmail 5 with IMP authentication:
...
$conf['auth']['params']['app'] = 'imp';
$conf['auth']['driver'] = 'application';
...

Now I try to change the authentication to Horde, with the Horde Database.
...
$conf['auth']['params']['app'] = 'imp';
$conf['auth']['driver'] = 'application';
...

The admin account don't work now, in conf.php is
$conf['auth']['admins'] = array('x at y.de');

x at y.de only in this e-Mail! :-)

But there is no login possible. It is not so easy to change the 
authentication in Horde?
Perhaps I add the admin in the Horde-Database? Witch table?

Thanks, Stefan