Care was taken to avoid incompatibility issues in RFC 7208.
Changes in Implementation Requirements from RFC 4408 are given in:
http://tools.ietf.org/html/rfc7208#appendix-B
I only quote the first bullet:
o Use of DNS RR type SPF (99) has been removed from the protocol;
see [RFC6686]
Alessandro Vesely writes:
Care was taken to avoid incompatibility issues in RFC 7208.
Changes in Implementation Requirements from RFC 4408 are given in:
http://tools.ietf.org/html/rfc7208#appendix-B
I only quote the first bullet:
o Use of DNS RR type SPF (99) has been removed from the
