https://datatracker.ietf.org/doc/draft-ietf-dane-smtp-with-dane/ "In WG Last Call"
Any estimate on when this might become final Viktor? After Google named & shamed Comcast for not having starttls, many well-known services are now establishing RFC 3207 starttls support. Additionally people are becoming aware of establishing DNSSEC support as well, which I understand is a prerequisite for the above. Regards, Per