폼메일 관련질문

<?include_once(G5_PATH."/lib/mailer.lib.php");if ($mail) {    check_token();    $from_name  = "예약상담";    $from_email = "[email protected]";//메일주소 넣으시고    $email = explode(",", $mail);    $sub = "$name, $gbeovhs, $pay, $memo";    for ($i=0; $i<count($email); $i++)        mailer($from_name, $from_email, trim($email[$i]), "예약상담", $sub);    echo <<<HEREDOC    <SCRIPT type="text/javascript">        alert("예약상담이 접수 되었습니다.");    </SCRIPT>HEREDOC;}$token = get_token();?><form name=fsendmailtest method=post><input type=hidden name=token value='<?=$token?>'><style>    td, input{font-size:8pt}</style><table width=280 border=0 align=center cellpadding="0" cellspacing="0">  <tr><td colspan="5"></td></tr>      <tr>        <td width="71" height="10">        <td width="209">    <tr>    <tr>        <td width="71" height="30">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;이름        <td width="209"><input type=text name=name size=10 required itemname='이름'>         <tr>        <td height="30">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;연락처        <td><input type=text name=gbeovhs size=30 class='field' required itemname='연락처'>    <tr>      <td height="30">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;메모1            <td><input type="text" name="pay" size="30" />              <tr>        <td height="30">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;메모2        <td colspan=3><input name="memo" type="text" value="" size="30" />        <tr>    <td>    <td colspan=3 style="display:none;"><input type=text class=ed name=mail size=30 required itemname="E-mail" value="[email protected]"> <!--전송받을 이메일 주소 넣으시고-->    <tr>        <td height="30" colspan=4 align=center><input type=submit value=' 예약상담 '></table></form>