Latest fixes in the stdlib make it a more solid alternative for strict composition than Flanker. We keep Flanker for now for lenient inbound parsing. We add stronger tests and fuzzing to validate we didn't regress.
This allows user creation, passwords reset and listing users from
Keycloak, plus a new MailDomainAccess model for admins.
* ✨(admin) add maildomainacess model, api route and backend tests
* ♻️(drf) simplify API code
* ✨(keycloack) add deployable keycloak to PaaS
* ✨(keycloak) add integration via API, upgrade to 26.x
* 🗑️(settings) remove invitation setting
* 🐛(tests) fix failing tests after rebase
* 🚨(all) fix lint
Before, sending was done synchronously on the api/send POST call. Now
we just build the MIME message and mark the message for sending, and
queue the actual SMTP (or internal) sending for the worker. We use
this opportunity to add fine-grained delivery statuses for each
recipient, something that traditional email systems are unable to do!
Expanding on that, this (too large) PR adds an initial Elasticsearch
index of threads. It also overhauls the build and CI system, using
Poetry instead of Pip.
