改变从使用smtp phpmailer时

Question

$mail->IsSMTP(); 
$mail->SMTPDebug  = 0;                                                       
$mail->SMTPAuth   = true;                 
$mail->SMTPSecure = "tls";                
$mail->Host       = "smtp.gmail.com";     
$mail->Port       = 587;                  
$mail->Username   = "MYUSER";  
$mail->Password   = "MYPASS";    

$mail->Sender = ADDRESS;  // i´ve try this 3 ways.
$mail->SetFrom( ADDRESS , NAME);
$mail->addCustomHeader("From: ADDRESS");


$mail->Subject    = "Contact";
$mail->IsHTML(true);
$mail->MsgHTML($msg);
$mail->AddAddress('myadress@domain.com');

$mail->Send();

我尝试这三种方式来改变From，但没有成功。它继续使用MYUSER而不是ADDRESS发送它！我不知道为什么会这样。有任何想法吗？