Apologies if this is in the GUI and I'm overlooking it. I'm interested in having OPNsense take over my DNS duties as it seems to do everything I need for my relatively simple LAN.I need one host to have an MX record, but I can't seem to find an option to add it. If it does not exist, maybe a simple checkbox " Add an MX Record for this host" could be done at some point?
Forwarder (dnsmasq) has advanced options for the command line, see --mx-host in http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.htmlResolver (unbound) has advanced options for the config file, see MX in https://forum.teksyndicate.com/t/need-some-help-with-unbound-dns/68740 et al.