unable to Send email using codeigniter - codeigniter

Question

I've a registration form and and want to send email to "To Email" and at the same time want to insert user record in db , insertion is successfull but email is not sending using codeigniter here is my code snippet from model and controller resp.
model:
public function add_user()
{
$data=array(
'username'=>$this->input->post('user_name'),
'first_name' => $this->input->post('fname'),
'last_name' => $this->input->post('lname'),
'email'=>$this->input->post('email_address'),
'password'=>md5($this->input->post('password'))
);
return $this->db->insert('user',$data);
//return $data;
}
and here is controller code:
$this->user_model->add_user();
$this->thank();
$config = Array(
'protocol' => 'smtp',
'smtp_host' => 'ssl://smtp.googlemail.com',
'smtp_port' => 465,
'smtp_user' => 'abc#gmail.com',
'smtp_pass' => '******',
'smtp_timeout' => '4',
'mailtype' => 'text',
'charset' => 'iso-8859-1'
);
$this->load->library('email',$config);
$this->email->from('mubbashir.azez#gmail.com');
$this->email->to($data['Email']);
$this->email->subject('test subject');
$this->email->message('hello CI');
$this->email->send();
echo $this->email->print_debugger();
here is view code:
<label for="email_address">Your Email:</label>
<?php echo form_error('email_address','<div class="error">', '</div>');?>
<input type="text" id="email_address" name="email_address" value="<?php echo set_value('email_address'); ?>" />
</p>
print debugger result:
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: data
Filename: controllers/user.php
Line Number: 82
A PHP Error was encountered
Severity: Warning
Message: fgets() [function.fgets]: SSL: The operation completed successfully.
Filename: libraries/Email.php
Line Number: 1869
220 mx.google.com ESMTP ea4sm1055346wib.7 - gsmtp
hello: 250-mx.google.com at your service, [139.190.86.52]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN
250-ENHANCEDSTATUSCODES
250 CHUNKING
from: 250 2.1.0 OK ea4sm1055346wib.7 - gsmtp
to: 555 5.5.2 Syntax error. ea4sm1055346wib.7 - gsmtp
The following SMTP error was encountered: 555 5.5.2 Syntax error. ea4sm1055346wib.7 - gsmtp
data: 503 5.5.1 RCPT first. ea4sm1055346wib.7 - gsmtp
The following SMTP error was encountered: 503 5.5.1 RCPT first. ea4sm1055346wib.7 - gsmtp
The following SMTP error was encountered:
Unable to send email using PHP SMTP. Your server might not be configured to send mail using this method.
User-Agent: CodeIgniter
Date: Wed, 12 Feb 2014 03:26:52 +0500
From: <mubbashir.azez#gmail.com>
Return-Path: <mubbashir.azez#gmail.com>
Subject: =?utf-8?Q?test_subject?=
Reply-To: "mubbashir.azez#gmail.com" <mubbashir.azez#gmail.com>
X-Sender: mubbashir.azez#gmail.com
X-Mailer: CodeIgniter
X-Priority: 3 (Normal)
Message-ID: <52faa3ac53dcf#gmail.com>
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="B_ALT_52faa3ac53dd9"
This is a multi-part message in MIME format.
Your email application may not support this format.
--B_ALT_52faa3ac53dd9
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
hello CI
--B_ALT_52faa3ac53dd9
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
hello CI
--B_ALT_52faa3ac53dd9--

Answer 1

The return value in your model must be
$data
and in your controller code:
replace this
$this->user_model->add_user();
with
$data = $this->user_model->add_user();

Answer 2

You have to put this into your controller:
$data=array(
'username'=>$this->input->post('user_name'),
'first_name' => $this->input->post('fname'),
'last_name' => $this->input->post('lname'),
'email'=>$this->input->post('email_address'),
'password'=>md5($this->input->post('password'))
);
Pass this $data to your model:
$this->user_model->add_user($data);
In your model also write:
add_user($data);
Then change this line also
$this->email->to($data['Email']);
to
$this->email->to($data['email']);