What would you like us to support (In short summary)

Motivation & Background

If we add dnsmasq and systemd-resolved to must_direct, in 'binding to WAN' scenario, DNS mapping will fail because all DNS queries will bypass dae.

The best way is to refer to external-dns.md. But it is not OOTB (out-of-the-box) and is expensive to configure.

Removing them from must_direct is not the best way but just acceptable. Its disadvantage is that those local domain servers have cache and they will not always request to upstream each time, thus if some domains share the same IP, domain rules can be incorrectly matched due to incorrect mappings.