stack/docker
BilalG1 74471d8d30
feat(emails): allow custom emails on shared server with dev wrapper (#1673)
## What

Custom emails / templates / drafts sent through Hexclave's **shared
(development) email server** are no longer blocked with
`RequiresCustomEmailServer`. They are now allowed, but their **subject
and body are wrapped** at send time with a notice that this is a
development email from Hexclave, so unexpected recipients know they can
safely ignore it.

The wrapper only applies to **project-defined content addressed to the
project's own users**. Hexclave's own default-template emails
(verification, password reset, magic link, etc.) and system
notifications (credential-scanning alerts, internal feedback) are sent
**verbatim**.

## How

-
**[send-email/route.tsx](apps/backend/src/app/api/latest/emails/send-email/route.tsx)**
— removed the `RequiresCustomEmailServer` throw that blocked the shared
server.
- **[emails.tsx](apps/backend/src/lib/emails.tsx)** — added
`wrapSharedDevEmail()` (prefixes the subject with `[Hexclave dev email]`
and prepends a notice banner to HTML/text) and
`isCustomEmailForSharedServer(recipient, createdWith, templateId)`.
- **[email-queue-step.tsx](apps/backend/src/lib/email-queue-step.tsx)**
— applies the wrapper at send time, gated on `emailConfig.type ===
"shared"` **and** the email being project-defined custom content.
Applying it at send time reliably wraps both the subject (from
`overrideSubject` or the template's `<Subject>`) and the rendered HTML.

### What counts as "wrap-eligible"
`isCustomEmailForSharedServer` returns true only when **all** hold:
1. the email is addressed to one of the project's own users (recipient
type is not `custom-emails`), **and**
2. it is a draft, a custom template, or raw HTML — i.e. **not** one of
the built-in `DEFAULT_TEMPLATE_IDS`.

Condition (1) exempts Hexclave's own system senders (credential-scanning
revoke, internal feedback) which send raw HTML to bare addresses via
`custom-emails` and would otherwise be mis-classified as project
content. This was a bug caught in review — a leaked-API-key security
alert to a shared-server customer would have been prefixed `[Hexclave
dev email]` with a "you can safely ignore it" banner. The recipient type
is already persisted on the outbox row, so no schema change was needed.

## Tests

- **send-email.test.ts** — replaced the old "400 on shared config" test
with two new tests: (a) a custom email on the shared server is delivered
with the `[Hexclave dev email]` subject prefix + notice banner, and (b)
a **default template** (`sign_in_invitation`) on the shared server is
delivered **verbatim** (no prefix, no banner) — pinning the core safety
contract.
- **js/email.test.ts** — flipped the "throws RequiresCustomEmailServer"
test to assert the send now resolves.

Verified locally against a full stack:
-  `send-email.test.ts` — 18/18
-  `js/email.test.ts` — 12/12
-  `password/send-reset-code.test.ts` — passes (default templates on
shared server stay unwrapped)

## Known limitations (intentional scope)

- **Template CRUD still blocked on the shared server.**
`internal/email-templates` routes still throw
`RequiresCustomEmailServer`, so a shared-server project can send raw
HTML / a default template via the API but cannot create or edit a
*saved* custom template. Sending arbitrary HTML is unaffected; only the
saved-template editor remains gated.
- **A project can send a (project-edited) default template unwrapped**
by calling `send-email` with a `template_id` equal to a built-in
`DEFAULT_TEMPLATE_IDS` value. Low impact (requires a server key, limited
upside), noted for awareness.

## Note: freestyle-mock fix included


[freestyle-mock/Dockerfile](docker/dependencies/freestyle-mock/Dockerfile)
now also accepts `/execute/v3/script`. The `freestyle` SDK bump in #1654
moved to `/v3`, but the mock only served `/v1`+`/v2`, so **all** local
email rendering 404'd (pre-existing `dev` breakage, not from this
feature). The v3 request/response is identical to v2. Happy to split
this into its own PR if preferred.

Out of scope: `emails/email-queue.test.ts` has 2 pre-existing snapshot
failures (`margin:0` vs recorded `margin:0rem`, a
`@react-email/components` version drift in the mock) — those tests use a
custom email server, so this PR's shared-only code path never runs for
them.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
  * Email sending can now proceed when using a shared email server.
* Development-style wrapping is applied to eligible shared-server custom
email content, including HTML notice injection.

* **Bug Fixes**
* Removed the previous blocking “requires custom email server” behavior
for shared-server configurations.
* Default-template emails over the shared server are no longer wrapped.

* **Tests**
* Updated end-to-end and JS email tests to validate both wrapped
custom-email behavior and unwrapped default-template behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-06-26 15:44:44 -07:00
..
backend [codex] Add analytics overview filters (#1496) 2026-06-10 17:50:35 -07:00
dependencies feat(emails): allow custom emails on shared server with dev wrapper (#1673) 2026-06-26 15:44:44 -07:00
dev-postgres-replica External db sync (#1036) 2026-02-05 12:04:31 -08:00
dev-postgres-with-extensions Payments bulldozer txn rework (#1315) 2026-04-17 22:11:21 +00:00
local-emulator Rename STACK_* env vars to HEXCLAVE_* in env templates, with legacy dual-read (#1588) 2026-06-19 18:58:53 -07:00
mock-oauth-server Local emulator (#422) 2025-02-13 18:57:02 +01:00
server Rename STACK_* env vars to HEXCLAVE_* in env templates, with legacy dual-read (#1588) 2026-06-19 18:58:53 -07:00