public function index(){
            $config=array(
                'protocol' => 'smtp',
                'smtp_host' => 'ssl://smtp.googlemail.com',
        'smtp_port' => 587,
        'smtp_user' => 'aziz.10786@gmail.com',
        'smtp_pass' => 'password',
        'mailtype'  => 'html',
        'charset'   => 'iso-8859-1'
            );
            $this->load->library('email', $config);
    $this->email->set_newline("rn");
            //send mail
                $this->email->from('aziz.10786@gmail.com','aziz');
                $this->email->to('aziz.10786@gmail.com');
                $this->email->subject('testing mail');
                $this->email->message('successfully working');

                if($this->email->send()){
                    echo 'your email sent';
                }
                else{
                    show_error($this->email->print_debugger());
                }
        }
    }

SMTP = smtp.gmail.com
smtp_port = 587
sendmail_from = aziz.10786@gmail.com
sendmail_path ="C:sendmailsendmail.exe -t"

smtp_server=smtp.gmail.com
smtp_port=587
error_logfile=error.log
debug_logfile=debug.log
auth_username=aziz.10786@gmail.com
auth_password=here is my gmail password
force_sender=aziz.10786@gmail.com

A PHP Error was encountered

Severity: Warning

Message: mail(): Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set()

Filename: libraries/Email.php

Line Number: 1554