Minutes interim-2025-sml-02: Tue 17:00
minutes-interim-2025-sml-02-202502181700-00

SML Agenda
Minutia
February 2025 Interim

Tuesda, February 18th, 2025
17:00 (UTC)
1 hours

Meetecho:
https://meetings.conf.meetecho.com/interim/?group=f0c93d0f-ce07-46c1-9444-0d8d34d64ad5

Chair: Alexey Melnikov & Arnt Gulbrandsen

Notes Taker: Arnt Gulbrandsen

Note Well

Note takers

First issue: Schemas, how to register

HJ unsure, asks about IANA

Ben suggests pushing people in the general direction of schema.org

Michael Richardson says Carsten and the asdf WG has been through this,
and draft-ietf-asdf-sdf appendix B is great

Next issue: Full representation, multipart/alternative

Does that break major clients?

Arnt: doesn't look like that, have mail from apple mail that seems as
if it would break the same recipients.

Ban: typical clients have a somewhat more restricted view of what's
possible, recommends avoiding very exotic configurations such as
Content-Type: multipart/alternative with content-Disposition:
attachment.

Long discussion of corner cases.

Arnt: suggest specifying only a message where there is a single
top-level multipart/alternative, providing no guidance relating to
more complex structure, and _perhaps_ suggesting that people are on
their own of they want to go there.

Ben: roughly agrees with Arnt, and suggests that clients will break or
behave surprisingly when receiving exotic structures.

HJ requests that Arnt look at _why_ clients generate complicated m/a
structure; Alexey wants to look at the messages too.

Discussion of whether more complex structures might perhaps make sense
in the context of S/MIME or currently unknown contexts.

Arnt again suggests leaving complex structures unspecified, not
banned. Ben agrees.

Alexey requests creating a github issue for this; HJ promises to do
this.