/** * Set Return-Receipt-To header field * * @param string/array $mail The email address to add, or an array of name=>email pairs * @param string/bool $name The name to show for the email address if there is just one * @return self */ public function setReturnReceiptTo($mail = '', $name = null) { if (strlen($mail) && Helper::isEmail($mail)) { if (!empty($name)) { $_m = Helper::mailTagger($mail, $name); } else { $_m = $mail; } $this->getMailer()->setRegistry('Return-Receipt-To', $_m, 'headers'); } return $this; }