phpmailer用法

require("class.phpmailer.php");

$mail = new PHPMailer();

$mail->IsSMTP();                                   // send via SMTP
$mail->Host     = "smtp1.site.com;smtp2.site.com"; // SMTP servers
$mail->SMTPAuth = true;     // turn on SMTP authentication
$mail->Username = "jswan";  // SMTP username
$mail->Password = "secret"; // SMTP password

$mail->From     = "[e-mail]";
$mail->FromName = "Mailer";
$mail->AddAddress("[e-mail]","Josh Adams"); 
$mail->AddAddress("[e-mail]");               // optional name
$mail->AddReplyTo("[e-mail]","Information");

$mail->WordWrap = 50;                              // set word wrap
$mail->AddAttachment("/var/tmp/file.tar.gz");      // attachment
$mail->AddAttachment("/tmp/image.jpg", "new.jpg"); 
$mail->IsHTML(true);                               // send as HTML

$mail->Subject  =  "Here is the subject";
$mail->Body     =  "This is the HTML body";
$mail->AltBody  =  "This is the text-only body";

if(!$mail->Send())
{
   echo "Message was not sent 
";
   echo "Mailer Error: " . $mail->ErrorInfo;
   exit;
}

echo "Message has been sent";