The IESG has approved the following document: - 'SMTP TLS Reporting' (draft-ietf-uta-smtp-tlsrpt-22.txt) as Proposed Standard This document is the product of the Using TLS in Applications Working Group. The IESG contact persons are Adam Roach, Alexey Melnikov and Ben Campbell. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-uta-smtp-tlsrpt/ Technical Summary A number of protocols exist for establishing encrypted channels between SMTP Mail Transfer Agents, including STARTTLS, DANE TLSA, and MTA-STS. These protocols can fail due to misconfiguration or active attack, leading to undelivered messages or delivery over unencrypted or unauthenticated channels. This document describes a reporting mechanism and format by which sending systems can share statistics and specific information about potential failures with recipient domains. Recipient domains can then use this information to both detect potential attackers and diagnose unintentional misconfigurations. Working Group Summary The WG consensus for adoption this draft was strong and the core of the draft remained stable from the first version. Most discussions in the WG were concerned with clarifications and with supporting of additional features like automated parsing of MIME headers. The MIME encoding of TLS report was discussed a lot with WG members changing their opinions. The draft has passed through two WGLCs and I think that overall it has received enough scrutiny from reviewers. Document Quality To document shepherd's knowledge there are no implementations of this draft to date. However all the authors expressed a desire to implement it and some implementations are under way. Personnel Valery Smyslov is the document shepherd. Alexey Melnikov is the responsible AD. RFC Editor Note [[RFC Editor: if draft-ietf-dnsop-attrleaf gets published as an RFC before this document, please add the following text (as a new 6.X Section) to the IANA Considerations section. Otherwise, please ask editors of draft-ietf-dnsop-attrleaf to include this entry in draft-ietf-dnsop-attrleaf directly]] Please add the following entry to the "DNS Underscore Global Scoped Entry Registry" that will be established by draft-ietf-dnsop-attrleaf. RR Type: TXT _Node Name: _tls References: [RFCXXXX]