Revision of core Email specifications (emailcore)

- Description:

  For several years email community discussed revising RFC 5321 and RFC 5322
  to move them to Internet Standards. Both documents are at Draft Standard
  (which no longer exist) and they have significant number of errata submitted.
  Concerns were also voiced about these documents, because they either
  don't talk about now accepted best email practices or in some cases may mislead
  readers about which practices are the best.

- Status: WG Forming
- Responsible AD: Barry Leiba
- BoF proponents: Alexey Melnikov <alexey.melnikov@isode.com>, Pete Resnick <resnick@episteme.net>
- BoF chairs: Alexey Melnikov, Seth Blank
- Number of people expected to attend: 50
- Length of session (1, 1.5, 2, or 2.5 hours): 100 minutes (but 50 mins will be fine)
- Conflicts to avoid (whole Areas and/or WGs): EXTRA, JMAP, DMARC, UTA, CALEXT, WPACK, DISPATCH, SECDISPATCH, GENDISPATCH

- Agenda
  - This is likely to be a working session going over rfc5321bis and rfc5322bis issues

- Links to the mailing list, draft charter if any, relevant Internet-Drafts, etc.
  - Mailing List: ietf-smtp@ietf.org (Archive: https://mailarchive.ietf.org/arch/browse/ietf-smtp/)

  - Draft charter:
    The base documents defining Internet messaging —
    colloquially, email -- are RFC 5321 (protocol) and RFC 5322
    (format). These are revisions and consolidations of prior
    documents and were last published in 2008. They currently sit
    at Draft Standard status, a status that actually no longer
    exists according to current IETF procedure.

    Since then some errata have accumulated (both submitted
    to IETF and reported directly to editors), as well as comments
    made about these documents not necessarily describing best
    email practices. There is now exists sufficient
    critical mass to undertake a limited review and revision of
    these documents for the purpose of advancing them to Internet
    Standard status.

    This working group will conduct that limited review and
    revision, and publish new versions of these documents at
    Internet Standard status, per RFC 6410. The limited review is
    restricted to include corrections and clarifications only, such as
    verified errata and errata marked as "held for document update",
    however the WG is not limited to only addressing submitted errata.
    No new protocol extensions or amendments will be considered
    for inclusion into 5321bis and 5322bis documents, unless
    they are already published as RFCs.

    The working group will also work on Applicability
    Statement/BCP in parallel with 5321bis and
    5322bis, to capture relationships to other widely deployed work
    (for example recommended extensions) and current email
    practices.

    Upon completion of these three milestones, and assuming the
    participants still have the momentum to do so, the working
    group may undertake similar review and revision of other email
    specifications. Such future word will require rechartering.


  - Relevant drafts:
      - Internet Message Format: https://datatracker.ietf.org/doc/draft-resnick-rfc5322bis/
      - SMTP: https://datatracker.ietf.org/doc/draft-klensin-rfc5321bis/
      - Applicability Statement for IETF Core Email Protocols: https://datatracker.ietf.org/doc/draft-klensin-email-core-as/