[bjarn]

What changed

Non-breaking; a minor release.

The API has a new webhook event, inbound.rejected, sent when an inbound message is rejected during SMTP. The regenerated types add it to WebhookEvent, so you can subscribe a webhook to it and compare a received payload's event() with it. WebhookEvent is open: SDK versions without the constant already decode the event and keep its raw name.

No hand-written code changes; the PR only regenerates src/main/java/co/lettermint/types.

API changes in the regenerated types

Type	Change
WebhookEvent	New value inbound.rejected as WebhookEvent.INBOUND_REJECTED (also in WebhookEvent.values())

The spec's openapi version string moved from 3.1.0 to 3.1.2. That has no effect on the SDK.

Usage

WebhookSecretResponse created = lettermint.webhooks().create(StoreWebhookData.builder()
        .name("Rejected inbound mail")
        .url("https://example.com/webhooks/lettermint")
        .events(List.of(WebhookEvent.INBOUND_REJECTED))
        .build());

// In the webhook handler:
WebhookPayload event = webhook.verify(rawBody, headers);
if (WebhookEvent.INBOUND_REJECTED.equals(event.event())) {
    // handle the rejected inbound message
}

Checks

• ./gradlew generateTypes with the latest spec: 217 files rewritten; the diff is the spec header in every file plus the new WebhookEvent constant
• ./gradlew checkGeneratedTypes with the latest spec: up to date (217 files)
• ./gradlew checkGeneratedTypes in header-only mode (as in CI): passed (217 files)
• ./gradlew build --no-daemon on JDK 24: passed
• ./gradlew clean build --no-daemon on JDK 17: passed (103 tests, 0 failures, 0 skipped)
• CI build-output checks on the jar: Automatic-Module-Name: co.lettermint present, no okhttp bundled

Not run locally

• JDK 21 and 25 and Windows (CI matrix).
• ./gradlew checkstyleMain checkstyleTest: the build has no checkstyle tasks, and the workflow ignores the result (|| true).

Suggested release tag

v3.3.0 (latest tag: v3.2.0).