The IESG has received a request from the Limited Additional Mechanisms for PKIX and SMIME WG (lamps) to consider the following document: - 'Secure/Multipurpose Internet Mail Extensions (S/ MIME) Version 4.0 Certificate Handling' <draft-ietf-lamps-rfc5750-bis-05.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2018-04-27. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document specifies conventions for X.509 certificate usage by Secure/Multipurpose Internet Mail Extensions (S/MIME) v4.0 agents. S/MIME provides a method to send and receive secure MIME messages, and certificates are an integral part of S/MIME agent processing. S/MIME agents validate certificates as described in RFC 5280, the Internet X.509 Public Key Infrastructure Certificate and CRL Profile. S/MIME agents must meet the certificate processing requirements in this document as well as those in RFC 5280. This document obsoletes RFC 5750. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-lamps-rfc5750-bis/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-lamps-rfc5750-bis/ballot/ No IPR declarations have been submitted directly on this I-D. The document contains these normative downward references. See RFC 3967 for additional information: rfc6979: Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA) (Informational - Independent Submission Editor stream)