$config['site']['send_emails'] = 1; // is acc. maker configured to send e-mails?
$config['site']['smtp_enabled'] = "yes"; // send by smtp or mail function (set 0 if use mail function)
$config['site']['smtp_host'] = "ssl://smtp.gmail.com"; // address
$config['site']['smtp_port'] = 465; // port
$config['site']['smtp_auth'] = "1"; // need authorization? (set 0 if not need auth)