BREAKING
Cloudflare Open-Sources AI Email Client
How Agentic Inbox Handles Mail
1Receive via Routing
2Agent SDK hook
3AI drafts reply
4Confirm to send
0tools
email tools
0
Durable Object per mailbox
0
Email Service beta
Stack Behind Agentic Inbox
Frontend & Backend
React 19, Router v7, Tailwind
Hono, Workers, Durable Objects + SQLite, R2
AI & Auth
Agents SDK, Workers AI (Kimi K2.5)
Cloudflare Access (JWT), Apache 2.0
Advantages and Caveats
Upsides
Self-hosted data sovereignty
Low-cost serverless operation
Caveats
One Access policy covers all mailboxes
Token errors trip up setup
A Reference App to Fork
AI NEWS BLITZ
Cloudflare has released Agentic Inbox, an open-source email client running on Workers.