Changelog

What's new

Releases and API changes, newest first.

1. October 23, 2026 · v0.1.0

   SpacePost MVP

   First public version of SpacePost: a Resend-compatible email API on Amazon SES.

   Sending: POST /emails and /emails/batch, scheduling, attachments, tags, custom headers, idempotency keys.

   Domains: DKIM, SPF and DMARC guidance, custom MAIL FROM, open and click tracking toggles.

   Webhooks: signed payloads (Standard Webhooks), retries with backoff, replay from the dashboard.

   Audiences and broadcasts with one-click unsubscribe, an SMTP relay, test-mode inboxes, and a 10 requests per second rate limit.

   Tooling: Node SDK, CLI, MCP server and an OpenAPI spec.