Simple Inbox
Deployable custom-domain inboxes for Cloudflare, Resend, and self-hosted support workflows.
Simple Inbox is an umbrella project for lightweight, single-tenant email inboxes you can deploy yourself.
The goal is practical: receive custom-domain mail, keep a searchable-ish web inbox, forward messages to the owner, reply from the app, and expose enough API/event surface for support automation.
Cloudflare Inbox
One-click Cloudflare Worker deployment with Email Routing, Email Service, R2, Queues, and API routes.
Resend Inbox
Dockerized Node deployment with Resend Receiving, Resend sending, and S3-compatible object storage.
Compare variants
Pick the Cloudflare-native or Resend/S3 runtime based on your domain, provider, and hosting preferences.
Product shape
Both variants share the same operator model:
- Route custom-domain inbound email to the app.
- Store raw EML, normalized message JSON, attachments, reply aliases, and settings.
- Forward a reply-enabled copy to the owner inbox.
- Open the protected web inbox to read and reply.
- Use bearer APIs, and in the Cloudflare variant Queue events, for downstream automation.
What this is not
Simple Inbox is not a multi-tenant help desk yet. It is intentionally a deployable single-tenant inbox template for indie projects, small SaaS teams, and operators who want ownership of the runtime and storage.