Sabes es muy comun que cuando andamos de prisa no nos percatemos de detalles en la informacion que nos recomiendan leer. Asi que como detalle, relajate y date una vuelta tranquila en el sitio que si hay un ejemplo de uso para el metodo AUTH.
Código PHP:
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 = "[email protected]";
$mail->FromName = "Mailer";
$mail->AddAddress("[email protected]","Josh Adams");
$mail->AddAddress("[email protected]"); // optional name
$mail->AddReplyTo("[email protected]","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 <b>HTML body</b>";
$mail->AltBody = "This is the text-only body";
if(!$mail->Send())
{
echo "Message was not sent <p>";
echo "Mailer Error: " . $mail->ErrorInfo;
exit;
}
echo "Message has been sent";