Hello! We are using a Meraki MX100 Firewall and wanted to block the DoH service of Bitdefender (GravityZone) through it. We also have a DNS Whitelistfilter in use. This is why we want to block any other DNS Service. We have tried using the blocklist (Content Filtering) and firewall rules, but neither the URLs dns.bitdefender.net and lon-dns.bitdefender.net, nor the IP address 220.127.116.11 obtained through NSLOOKUP can be blocked. The DoH function of Bitdefender cannot be deactivated. We would be grateful for any assistance.
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