EdgeMail Sandbox
A complete email backend on Cloudflare's free tier. Inbound routing, outbound delivery, full-text search, multi-mailbox, attachments — all for $0/month.
Try the Email Client
This is a simulation of the ArgoBox email UI. The real version runs at /admin/email.
Hi Admin,
Congratulations! Email Routing is now configured for argobox.com. Incoming mail to any configured address will be forwarded to your Cloudflare Worker for processing.
Your current configuration:
admin@argobox.com→ Worker processing → D1 storagesupport@argobox.com→ Worker processing → D1 storagenoreply@argobox.com→ Worker processing → D1 storage
All emails are indexed with FTS5 for full-text search. Attachments under 1.5MB are stored as D1 BLOBs; larger files go to R2.
— The Cloudflare Team
How It Works
Six layers, zero monthly cost
Everything Included
All features, all free
Inbound Email
Cloudflare Email Routing catches mail at your domain and forwards to a Worker for processing
FreeOutbound Email
Resend free tier (100 emails/day) or any SMTP provider. Transactional + compose from admin UI
FreeFull-Text Search
SQLite FTS5 indexes every email body, subject, and sender for instant search
FreeMulti-Mailbox
Multiple addresses across multiple domains. Filter by mailbox, send from any address
FreeAttachment Storage
D1 BLOBs for small files, R2 for large attachments. Zero egress fees
FreeReal-Time Polling
10-second polling with browser notifications when the tab is unfocused
FreeAI Compose
AI-assisted email drafting with context from your knowledge base
FreeSandboxed HTML
HTML emails render in sandboxed iframes. Input validation prevents header injection
Freevs. SaaS Email Providers
What you'd pay elsewhere for the same capabilities
Get Started in 5 Minutes
npx create-edgemail my-email-system
cd my-email-system
npm run setup # configures CF Email Routing + D1 + R2
npm run deploy # deploys to Cloudflare Workers
4 npm packages: @edgemail/core, @edgemail/api,
@edgemail/client, create-edgemail.
6,400 lines. 143 tests. MIT license.
Stop Paying for Email
EdgeMail gives you a complete email backend on Cloudflare's free tier. Open source, no vendor lock-in.