title: What is difference between /usr/sbin/sendmail -t -i and /usr/sbin/sendmail in server configuration?
body: <p>I have upload my joomla project on live server (Linux basd LAMP) in phpinfo file I found the <code>"/usr/sbin/sendmail -t -i"</code> for smtp configuration. and  my local WAMP server configuration use <code>"/usr/sbin/sendmail"</code> any please let know why use <code>-t</code> and <code>-i</code>.  what is it ?</p>