mx

type Record struct {
	// Priority is the MX preference value.
	Priority uint16 `mapstructure:"priority" json:"priority"`
	// Host is a Go template string for the mail exchange FQDN (must end in ".").
	// Empty defaults to "{{.Domain}}." at render time — the tunnel's own FQDN.
	Host string `mapstructure:"host" json:"host,omitempty"`
	// Prefix is the DNS owner label relative to the base domain. "" = apex.
	Prefix string `mapstructure:"prefix" json:"prefix,omitempty"`
	// TTL is the DNS TTL in seconds advertised to resolvers. Zero uses dns.DefaultTTL.
	TTL uint32 `mapstructure:"ttl" json:"ttl,omitempty"`
}