Could not execute mail delivery program

Question

$this->load->model('emailmodel');
$query = $this->emailmodel->get_emails();
$emails = array();
set_time_limit(0);

foreach($query->result() as $u)
{
    $this->notification->send($u->to, $this->config->item('neworder'),'orders/mail/subscription', 
        array(
            'order' => $neworder,
            'user' => $user
        ));
    break;
}

so I am sending mail in a loop for each subscribed user, but it gives me an error:

Could not execute mail delivery program '/usr/sbin/sendmail -t -i '

how to fix this?

Answer 1

I think your system doesn't support sendmail in that path.. You have to change the sendmail path or reinstall it and be sure that your queue mail isnot overloaded...

Answer 2

We had the same problem. please check the security limits on your system (ulimit)

You can execute ulimit -a

bash# ulimit -a

...
open files (-n) 1024
max user processes (-u) 1024
...

You can change this on RedHat in /etc/security/limits.conf We have change the nproc and nofile to a bigger value.

Because each mail() call opens a port(file). If you reach the Filelimit this errormessage occurs.