On Mon, Sep 30, 2019 at 11:56:33PM -0400, Brandon Martin <lists.na...@monmotha.net> wrote a message of 10 lines which said:
> It's use-application-dns.net. NXDOMAIN it, and Mozilla (at least) > will go back to using your local DNS server list as per usual. Unless, I hope, the user explicitely overrides this. (Because this canary domain contradicts DoH's goals, by allowing the very party you don't trust to remotely disable security.)