Codeigniter email function is not working with amazon ses - php

Question

I am using Amazon ses account to send email.
All the credentials are working fine in core php with class.phpmailer.php
But not working with codeigniter email class on the same server
And not showing me any error with echo $this->email->print_debugger();
Please take a look at code
core php code
//include phpmailer
require_once('class.phpmailer.php');
//SMTP Settings
$mail = new PHPMailer();
$mail->IsSMTP();
$mail->SMTPAuth = true;
$mail->SMTPSecure = "tls";
$mail->Host = "email-smtp.us-west-2.amazonaws.com";
$mail->Username = "AKIAIF4U4***5J36ROIA";
$mail->Password = "AhI9Nn********GSo4u8r0xNK/OI";
//
$mail->SetFrom('donotreply#*****.com', 'medi***'); //from (verified email address)
$mail->Subject = "Email Subject"; //subject
//message
$body = "This is a test message vipul.";
$body = eregi_replace("[\]",'',$body);
$mail->MsgHTML($body);
//recipient
$mail->AddAddress("vipul.kumar#******.com", "Test Recipient");
//Success
if ($mail->Send()) {
echo "Message sent!"; die;
}
//Error
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
}
codeigniter code
public function test_aws_email($data=array()){
$config = array(
'protocol' => 'smtp',
'smtp_host' => 'tls://email-smtp.us-west-2.amazonaws.com',
'smtp_port' => 465,
'smtp_user' => 'AKIAIF4U4***5J36ROIA',
'smtp_pass' => 'AhI9Nn********GSo4u8r0xNK/OI'
);
$config['crlf'] = "\r\n";
$this->load->library('email', $config);
$this->email->set_newline("\r\n");
$this->email->from("donotreply#******.com", 'Medi***');
$this->email->to('vipul.kumar#******.com');
$this->email->subject('TEST FOR AWS ');
$this->email->message('AWS AUTHENTICATION CLEAR ');
$this->email->set_mailtype("html");
$this->email->send();
echo $this->email->print_debugger();
}