无法使用php mail（）codeigniter发送邮件

Question

if ($this->form_validation->run()) {
        $key = sha1(uniqid());
        $this->load->library('email', array('mailtype' => 'html'));
        $this->load->model('customerModel');
        $this->email->from('codeigniter.emailverify', 'emailverify');
        $this->email->to($this->input->post('email'));
        $this->email->subject('Confirm Your Account');

        $message = "Welcome Ayos Member";
        $message .="<p><a href='" . base_url() . "main/register_cust/$key'>CLICK HERE </a>TO COMFIRM YOUR ACCOUNT</p>";
        $this->email->message($message);

        if ($this->customerModel->account($key)) {
            if ($this->email->send()) {

                echo "<script>
                alert('Successfully Sent');
                window.location.href='register';
                </script>";

            } else {
              /*  echo "<script>
                alert('Failed to Sent');
                window.location.href='register';
                </script>";*/
                echo $this->email->print_debugger();
            }
        } else {
            echo "problem in database";
        }
    } else {
        $this->load->view('pages/include/header');
        $this->load->view('pages/register');
        $this->load->view('pages/include/footer');
    }
}

我在电子邮件验证中有此代码。它完全适用于我的电脑，它发送到电子邮件，当我在我的笔记本电脑中转移我的整个项目时，它没有发送到电子邮件