On Xenial I've set strict-order in /etc/NetworkManager/dnsmasq.d/strict-order. After a Restart of dnsmasq I have no failed DNS Queries to our internal Domain.
For me this is fine, because the first (internal) Nameserver act as forwarder. If this fails the second Nameserver can be used to resolv Addresses from the Internet.
On Xenial I've set strict-order in /etc/NetworkMan ager/dnsmasq. d/strict- order. After a Restart of dnsmasq I have no failed DNS Queries to our internal Domain.
For me this is fine, because the first (internal) Nameserver act as forwarder. If this fails the second Nameserver can be used to resolv Addresses from the Internet.