[horde] mysql ssl help!

[Nicolás Valera]

Hi,

I'm trying to configure horde authentication with mysql and ssl but 
doesn't work.

although the horde user in the database has "require ssl" the 
connections are established without encryption (verified with wireshark)

$conf['auth']['params']['username'] = 'horde';
$conf['auth']['params']['password'] = 'xxx';
$conf['auth']['params']['hostspec'] = 'xxx.example.com';
$conf['auth']['params']['port'] = 3306;
$conf['auth']['params']['protocol'] = 'tcp';
$conf['auth']['params']['database'] = 'xxx';
$conf['auth']['params']['charset'] = 'utf-8';
$conf['auth']['params']['ssl'] = true;
$conf['auth']['params']['ca'] = '/var/www/horde/config/ca-cert.pem';
$conf['auth']['params']['phptype'] = 'mysqli';
$conf['auth']['params']['driverconfig'] = 'custom';
$conf['auth']['params']['table'] = 'users';
$conf['auth']['params']['username_field'] = 'email';
$conf['auth']['params']['password_field'] = 'password';
$conf['auth']['params']['encryption'] = 'crypt-md5';
$conf['auth']['params']['show_encryption'] = false;
$conf['auth']['driver'] = 'sql';


PLEASE HELP!!
Thanks in advance!!!

Nicolás.