Create a PHP page and substitute as required.
$MP = "/usr/sbin/sendmail -t";
$fd = popen($MP,"w");
fputs($fd, "To: $outRecipient\n");
fputs($fd, "From: $senderName <$senderAddress>\n");
fputs($fd, "Subject: $outsubject\n");
fputs($fd, "X-Mailer: PHP4\n");
fputs($fd, $outMessage);
pclose($fd);
?>
Hope its usefull to you. Good Luck!