Email-to-RSS

Convert email newsletters into a private RSS feed using Cloudflare Workers + ForwardEmail.

This project is self-hosted, uses your own domain, and keeps your data in your own Cloudflare account.

Why this exists

Many newsletters only support email delivery. RSS readers offer a better reading experience, but getting email-only newsletters into RSS usually means relying on shared third-party infrastructure.

Email-to-RSS keeps the same workflow while avoiding shared domains and shared data stores.

Features

• One-click feed creation from an admin dashboard
• Unique newsletter addresses per feed (for example apple.mountain.42@yourdomain.com)
• ForwardEmail webhook ingestion with source-IP verification
• RSS generation on demand (/rss/:feedId)
• Cloudflare KV storage for feed config + email metadata/content
• Password-protected admin UI
• Fully self-hosted on your Cloudflare account

Architecture

1. ForwardEmail forwards inbound messages to https://yourdomain.com/api/inbound.
2. The Worker validates the request source against ForwardEmail MX IP ranges.
3. The Worker parses and stores incoming content in KV.
4. https://yourdomain.com/rss/:feedId renders RSS from stored items.
5. /admin provides feed management and email deletion.

Main routes:

• src/routes/inbound.ts: webhook ingestion
• src/routes/rss.ts: RSS rendering
• src/routes/admin.ts: admin UI + feed CRUD

Requirements

• Node.js 20+
• A Cloudflare account
• A domain managed in Cloudflare DNS
• A ForwardEmail account

Setup

1. Clone this repository.
2. Authenticate Wrangler:

   npx wrangler login
   

3. Run setup:

   bash setup.sh
   

setup.sh will:

• install npm dependencies
• verify Cloudflare auth (wrangler whoami)
• create KV namespaces (EMAIL_STORAGE + preview)
• set the ADMIN_PASSWORD secret in production
• generate wrangler.toml from wrangler-example.toml
• stamp compatibility_date to the current date

4. Configure ForwardEmail DNS records in Cloudflare:

Type	Name	Content	Notes
MX	@	mx1.forwardemail.net	Priority 10, DNS only
MX	@	mx2.forwardemail.net	Priority 10, DNS only
TXT	@	"forward-email=https://yourdomain.com/api/inbound"	webhook target
TXT	@	"v=spf1 include:spf.forwardemail.net -all"	SPF

5. Deploy:

   npm run deploy
   

6. Open https://yourdomain.com/admin and sign in.

Development

npm install
npm run dev
npm test
npm run build

Configuration notes

• wrangler-example.toml is the template; wrangler.toml is generated locally.
• Keep compatibility_date fresh when doing runtime upgrades.
• ADMIN_PASSWORD is a Cloudflare Worker secret, not a plain env var in config.

Security notes

• Inbound webhook access is IP-restricted to ForwardEmail MX sources.
• Admin auth is cookie-based (HttpOnly, SameSite=Strict).
• You should use a strong admin password and rotate periodically.

Upgrading dependencies

To refresh dependencies to latest:

npm outdated
npm install
npm test
npm run build

Then update compatibility_date and redeploy.

License

MIT