This does not big harm on not-frequently updated zones, NOTIFY is simply delayed. This helps on frequently updated (DDNS or [AI]XFR) zones - NOTIFY is not sent more often than once a second.
This does not big harm on not-frequently updated zones, NOTIFY is simply delayed. This helps on frequently updated (DDNS or [AI]XFR) zones - NOTIFY is not sent more often than once a second.