anyone familiar wiht PHPMailer getting error: The following From address failed:

[slick101]

$mail = new PHPMailer();
		$mail->SetLanguage("en", '/phpmailer/language/'); 
		$mail->IsSMTP();
		$mail->Host = "smtp.gmail.com";
		$mail->Port = 587;
		$mail->SMTPAuth = true;

	$mail->Username = "***@gmail.com";
	$mail->Password = "***";

	$mail->From = "***@gmail.com";
	$mail->FromName = "Team";
	$mail->AddAddress($rs['email'], $rs['username']);

	$mail->AddReplyTo("***@gmail.com");
	$mail->isHTML(true);

	$mail->Subject = "hello";
	$this->assign('user', $rs);
	$mail->Body = $this->fetch('/email/email_activation_html.tpl');

	if($mail->Send()){
		echo "sent";
		return true;
	} else {
		$this->debug($mail->ErrorInfo);
	}

I know the email is correct so is the pw. I just keep getting the error: The following From address failed. looked all over the internet and forum but everyone basically has same code as me...so not sure whats up? I also tried $mail->SMTPDebug = 2;