cprapid.com is breaching privacy

Our company has 3 servers on each one of those server we added an account for our main domain for example maindomain.com so we can be able to manage the hostname records and name servers records in a proper DNS zone, although only one of those servers is actually actively managing the live records for all 3 servers. for example the first server let's call it server1.maindomain.com has a DNS zone maindomain.com with the following records : server1.maindomain.com ====> "IP of the first server" # This is the hostname record of the first server server2.maindomain.com ====> "IP of the second server" # This is the hostname record of the second server server3.maindomain.com ====> "IP of the third server" # This is the hostname record of the third server ns1.maindomain.com ====> "IP of the first server" # This is the name server record of the first server ns2.maindomain.com ====> "IP of the first server" # This is the name server record of the first server ns3.maindomain.com ====> "IP of the second server" # This is the name server record of the second server ns4.maindomain.com ====> "IP of the second server" # This is the name server record of the second server ns5.maindomain.com ====> "IP of the third server" # This is the name server record of the third server ns6.maindomain.com ====> "IP of the third server" # This is the name server record of the third server along with those records there is also the necessary NS records and the MX records are pointing to Google Gsuite. the second server has the same records, while the third server which we just setup lately had default MX record. The domain name "maindomain.com" Name Servers are setup using ns1.maindomain.com and ns2.maindomain.com and there is not DNS synchronization setup between the three servers. although the DNS is managed by the first server but some how the missed up MX record on the third server was affecting our email and causing bounce backs, when customers try to send emails to "maindomain.com" which has it's emails hosted with Google Gsuite. the sending servers end up trying to send emails through the third server. the only explanation that makes it possible for you to allow all your customers to use ns1.cprapid.com and ns2.cprapid.com as their domains Name Servers to point them to their Cpanel servers is that you synchronize all their DNS zones to your own servers and that the servers "ns1cprapid.com" and "ns2.cprapid.com" are actually DNS servers which hosts all your customers DNS zones without their permission even the ones that don't choose to use the Name Servers "ns1cprapid.com" and "ns2.cprapid.com", which is a clear invasion of privacy. worse than all is that there is some bug or mix up that some how you populate those DNS records to other DNS servers which end up causing confusion and malfunctions in DNS domains that are not even managed by Cpanel. to confirm that theory we even end up moving our DNS records to our registrar's internal DNS manager and we were still getting the bounce back emails. only when we noticed that the error message mentioned the third server that we checked and we noticed the MX record wasn't set to remote server. here is the bounce back message :

Reported error:	550 5.7.368 Remote server returned authentication required to relay -> 550 Please turn on SMTP Authentication in your mail client. ;EUR05-DB8-obe.outbound.protection.outlook.com) [52.100.20.200]:26592 is;not permitted to relay through this server without authentication.
DSN generated by:

Please fix this issue and stop synchronizing our DNS zones to your servers.