DomainSend vs Agentic Inbox is hosted product versus official reference app. Agentic Inbox is Cloudflare’s open-source inbox, Apache-2.0, with 8,165 GitHub stars. You deploy it. There is no hosted product. The price is your Cloudflare bill. DomainSend is the opposite shape: an account, the app, and a domain, with DomainSend operating the Worker, D1, and R2.
Short answer: DomainSend is a web inbox for Cloudflare-powered email — a hosted inbox, while Agentic Inbox is Cloudflare’s official self-hosted reference app.
Cloudflare email inbox in your browser. First three domains free. Pro is $10/month for 12 domains, then $1 per extra domain. Agency is $60/month unlimited.
Create free account
Hosted inbox or a stack you operate
DomainSend is for people who already run on Cloudflare and do not want to provision the mail stack. You create an account, open the app, and connect a domain. The setup guide says about five minutes. One step sits outside the app: an Email Routing rule to the flaremail-api Worker. DomainSend operates the Worker, D1, and R2.
Agentic Inbox is the self-hosted path in this comparison. You clone it and you keep it running. That can be the right trade when the mail must live in your Cloudflare account, or when a feature below is the reason you are here.
Side by side
Same job, different operator. Price on the DomainSend side is the domain plan, not a claim that self-hosting is free.
| DomainSend | Agentic Inbox | |
|---|---|---|
| Where it runs | Hosted. Create an account and open the app. | Self-hosted. You deploy and operate it. |
| Who operates Worker, D1, and R2 | DomainSend operates the Worker, D1, and R2. | You do. |
| Setup | Connect a domain in the app. The setup guide says about five minutes, with one step outside the app: an Email Routing rule to the flaremail-api Worker. | Deploy it, then add Access secrets, catch-all routing, and Email Service. |
| Inbox | Browser inbox: read, folders, search, compose, attachments, labels, and privacy controls. | Email Routing inbound, one Durable Object plus SQLite per mailbox, R2 attachments, and an AI draft that waits for confirmation before send. |
| Send | Send from your domain in the same app. | Email Service on your account. MCP is at /mcp. Production requires Cloudflare Access. |
| Price | First 3 domains free. Pro is $10/month for 12 domains, then $1 per extra domain. Agency is $60/month unlimited. | No hosted product. You pay your Cloudflare bill. |
What the DomainSend screen actually is
The inbox list above is the web app from this product, with obviously fake mail so the screenshot does not use a customer account. The sign-in form at app.sendwithflare.com is only the account door. It is not the inbox.
What Agentic Inbox is actually good at
Agentic Inbox is a serious reference, and that is its strength. Inbound mail uses Email Routing. Each mailbox is one Durable Object plus SQLite. Attachments go to R2. A Workers AI agent can draft replies, and it requires confirmation before send. MCP is at /mcp. Production requires Cloudflare Access.
Setup is a deploy plus Access secrets, a catch-all routing rule, and Email Service. If you want Cloudflare’s own AI-draft pattern inside your account, this is the codebase that shows it. If you want to skip provisioning Worker, D1, and R2, that is the job DomainSend is selling.
Which one to pick
Pick Agentic Inbox when you want the bits in your account and you will operate them. Pick DomainSend when you want the inbox without becoming the person who provisions Worker, D1, and R2.
Start on onboarding and use the setup guide. First three domains are free. Pro is $10/month for 12 domains, then $1 per extra domain. Agency is $60/month unlimited.
Other DomainSend comparisons
The same hosted-versus-self-host question, for the rest of the field:
- DomainSend vs Mailflare
- DomainSend vs Quickinbox
- DomainSend vs Orange Inbox
- DomainSend vs Email Explorer
- DomainSend vs Postern
- DomainSend vs Doota
- DomainSend vs cf-mail
- DomainSend vs Reccado
- DomainSend vs cloudflare-email
- DomainSend vs AgentBox
Create an account on onboarding, then follow the setup guide. The guide’s outside step is an Email Routing rule to the flaremail-api Worker.
DomainSend is free for your first three domains. Pro is $10/month for 12 domains, then $1 per extra domain. Agency is $60/month unlimited.
Create free account
Sources and context
- Cloudflare Email Service routes incoming emails to custom addresses, Workers, or external destinations.
- Cloudflare routing rules can send mail to an email address, send it to a Worker, or drop it.
- Cloudflare Workers can send email through send_email bindings.
- Cloudflare documents sending and routing as related but separate email setup paths.
- Cloudflare Email Routing can route mail to Workers for custom handling.
FAQ
Is Agentic Inbox a hosted DomainSend competitor I can sign up for?
No. It is Cloudflare’s self-hosted reference app. You deploy it. There is no hosted product.
Can the Agentic Inbox AI send mail on its own?
The Workers AI agent can draft replies, and it requires confirmation before send.
What does DomainSend cost?
First three domains are free. Pro is $10/month for 12 domains, then $1 per extra domain. Agency is $60/month unlimited.
Three domains free. Pro is $10/month for 12 domains, then $1 per extra domain. Agency is $60/month unlimited.
Create free account