> Thank you so much for your directions and guidance. I really do appreciate. > > Although I am getting a bit lost. Is it possible for different clients to > have the same IP address in such a short period of time as per my logs > posted? >
Spamhaus and others limit the replies they get from large DNS providers[1], like Wietse said. You can overcome this issue by running a local forwarding DNS server locally on your network and use this as a DSN resolver for your network. Peter [1] https://www.spamhaus.org/faq/section/DNSBL%20Usage#365
