Or just allocate proper DNS records as the standard intended. There was a SPF record type in DNS, TXT was suggested as a transition, but we all know how that w

Or just allocate proper DNS records as the standard intended. There was a SPF record type in DNS, TXT was suggested as a transition, but we all know how that went. Incidentally, SPF is a good example how a large company hijacked the process and tried to stuff the standard with things they had taken out patents on. That made the end standard less useful than what it could have been.