Here are the steps that are needed to transfer full master DNS zones to CloudDNS.com
1st enable API within your ClouDNS control panel and create a user id and password
Running Power DNS
Add the following to the allowed list for axfr
184.108.40.206, 220.127.116.11, 2a00:1768:2001:46::/64, 2a00:1768:6001:10::/64
These are the IP addresses that must be allowed if you are doing Master zone transfers.
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