private function removeOldItems()
    {
        $emailSendReceiveOld = $this
            ->getEmailSendReceiveColl()
            ->findAll($this->findOldEmailReceiveOldCallback());
        /** @var EmailSendReceive $emailSendCheckI */
        foreach ($emailSendReceiveOld as $emailSendCheckI) {
            $this->getEmailSendReceiveColl()->remove(
                $this->findSameItemCallback($emailSendCheckI)
            );
        }
    }