We are using ConnectSafe DNS for our network to block malware related sites through DNS blocking. At times, the DNS servers (199.85.127.30, 199.85.126.30) do not respond and the DNS resolving fails. Is there a limit on maximum number of queries that can be sent to these servers?
Note: We have tried to register for Norton ConnectSafe for Business by sending mails multiple times to dns4biz@symantec.com. But no response till date.