forwarder.go
func (dom *Domain) Forwarder(name, to string) *Forwarder {
	return &Forwarder{Domain: dom, Name: name, To: to}
}
func (dom *Domain) Forwarder(name, to string) *Forwarder {
	return &Forwarder{Domain: dom, Name: name, To: to}
}
// Forwarder returns a forwarder type with the given from and dest