smtp connection refused

Hello,

I am trying to send a test email using codeigniter/Zoho SMTP. But whenever I am trying to send an email, it is giving me error.

Message: fsockopen(): unable to connect to ssl://smtp.zoho.com:465 (Connection refused)

My code is as follows

$this->load->library('email');

$config = array();

$config['protocol'] = 'smtp';

$config['smtp_host'] = 'smtp.zoho.com';

$config['smtp_user'] = '<my_email>';

$config['smtp_pass'] = '<my_password>';

$config['smtp_port'] = '465';

$config['smtp_crypto'] = 'ssl';

$config['smtp_timeout'] = '300';

$config['charset'] = 'iso-8859-1';

$config['wordwrap'] = TRUE;

$this->email->initialize($config);

$this->email->set_newline("\r\n");

$this->email->from(' my@email.com', 'Rajarshi');

$this->email->to('my@another_email.com');

$this->email->subject('Email Test');

$this->email->message('Testing the email class.');

$this->email->send();

$this->email->print_debugger();

Any help will be appreciated.

Regards

Rajarshi