$bounceAddress isn't used anywhere in initEmail()

[phillprice]

    // Messages with the X-SilverStripeMessageID header can be tracked
    if(isset($customheaders["X-SilverStripeMessageID"]) && defined('BOUNCE_EMAIL')) {
      $bounceAddress = BOUNCE_EMAIL;
      // Get the human name from the from address, if there is one
      if(ereg('^([^<>]+)<([^<>])> *$', $from, $parts)) {
        $bounceAddress = "$parts[1]<$bounceAddress>";
      }
    } else {
      $bounceAddress = $from;
    }