/**
 * Authentication against IMAP using the imap_open function.
 */
$c->authenticate_hook['call'] = 'IMAP_PAM_check';
$c->authenticate_hook['config'] =  array(
  'imap_url' => '{localhost:993/imap/ssl/novalidate-cert}',
  'email_base' => 'example.com'
);

include('drivers_imap_pam.php');