phpmailer ทำไมส่งได้แค่ 60 mail อยากให้ส่งได้มากกว่านี้ต้องทำอย่างไงครับ

<?
	require("phpmailer/class.phpmailer.php");
	$lang=$_GET[lang];

	$mail = new PHPMailer();
	$mail->IsSMTP();
	$mail->Host     = "localhost"; 
	$mail->Helo = "yourdomain.com";
	$mail->Username = "[email protected]";
	$mail->Password = "mailpassword";
	$mail->SMTPAuth =true;
	$mail->WordWrap = 50;
	$mail->IsHTML(true);
	$mail->CharSet = "utf-8";

		include"../connect/connect.php";
		$sql="select * from tb_list";
		$res=mysql_db_query($dbname,$sql);
		$num=mysql_num_rows($res);
		while($rs=mysql_fetch_array($res)) {
		$id=$rs[id];
		$emails=$rs[emails];
		echo $emails."<br>";
		$msg_body="ทดลองการส่ง mail โดยใช้ phpmailer";
		$mail->Subject  =  $subject;
		$mail->Body     =  $msg_body;
		$fromname="ทดสอบการทำงาน";
		$mail->From	= $fromemail;
		$mail->FromName	= $fromname;
		$mail->AddAddress("$emails", "recipient$id");


		if(!$mail->Send())
		{
			echo "<font color=red>Message was not sent $to</font><br>";
		}
		else
		{
			echo "<meta http-equiv='refresh' content='5 ;url=mail.php?lang=$lang'>" ;

		}
		$mail->ClearAllRecipients();
		}
echo"Send Mail Finish!!!";
?>