The IESG has approved the following document: - 'SMTP security via opportunistic DANE TLS' (draft-ietf-dane-smtp-with-dane-19.txt) as Proposed Standard This document is the product of the DNS-based Authentication of Named Entities Working Group. The IESG contact persons are Stephen Farrell and Kathleen Moriarty. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-dane-smtp-with-dane/ Technical Summary This document explains in detail how MTAs (Mail-Transfer-Agent) use TLSA records in setting up TLS protected sessions. This document is based on implementation and deployment experience. The document covers offers guidance on many corner cases in both in DANE TLS setup as well in mail transport. This document has been implemented in two major MTA distributions, and there is growing usage base. Working Group Summary There has been good solid discussion on this document, there is strong consensus about the whole document. Document Quality The document is detailed and covers many corner cases some of with are DNS related to email. The protocol specified here is tested in practice and that is reflected in the document. The document educates the readers about choices to avoid pitfalls in implementations and operations. Email people are encouraged to review the document. It is helpful to read this document along with its companion document draft-ietf-dane-srv-xx. The two document cross reference each other to avoid duplication. Personnel Document Shepherd: Olafur Gudmundsson Area Director: Stephen Farrell
