Sending eMails with CronJob

Hi,
I have a script that is run via a cronjob, everything works fine except for: 
$this->email->to($user->mail);

The eMail to [email protected] works fine

                $this->load->library('email');
                $config_mail['mailtype'] = 'html';
                $this->email->initialize($config_mail);
                $this->email->from($settings['noreply'], 'True Blue Locals');
                $this->email->to($user->mail);

                $this->email->to("[email protected]");

Just wondering if there is something wrong with the formatting.

Any guidance will be appreciated

Cheers
Ron

Cheers
Ron