JMAP compliance issues with RFCs

Issue Description

Expressed as failing tests in add several failing test for RFCs non conformance - Pull Request #3287 - stalwartlabs/stalwart - GitHub

Stalwart Version

v0.16.x

Installation Method

Built from source

Database Backend

RocksDB

Blob Storage

RocksDB

Search Engine

Internal

Directory Backend

Internal

I have reviewed the documentation and FAQ and confirm that my issue is NOT addressed there.

on

I have searched this support forum (open and closed topics) and confirm this is not a duplicate.

on

I understand that topics in this category are triaged by a bot first but a human reply will follow up. If I’d prefer a human-only reply, I’ll add the no-ai tag to my topic.

on

LLM contributions are not accepted. Explain the problem you’re having.

Please consider the PR as a bug report, you don’t have to merge it.

I don’t have any problem per se because all the issues can be worked around, just some RFC compliance odities.