On your own domain
Every address on your domain lands in one inbox. hello@, billing@, you@ — all yours, catch-all by default.
Connect your Cloudflare account and Kiap provisions a real inbox on your own domain — receives mail, sends from your domain, keeps conversations threaded, and lets you search every message. No mail server to run, no API tokens to paste.
hello@yourdomain.com
Welcome to your new inbox
Shopify
Your store is live
GitHub
Security alert resolved
Received
Welcome to your new inbox
from hello@yourdomain.com · 2 min ago
Built on infrastructure you already trust
Features
Email Inbox receives, sends, threads, and searches mail on your domain — everything a hosted mailbox does, without the server.
Every address on your domain lands in one inbox. hello@, billing@, you@ — all yours, catch-all by default.
A Cloudflare Worker handles inbound and outbound mail. Kiap provisions it, wires Email Routing, and sets the MX and SPF records.
Authorize with one Cloudflare OAuth consent screen. No dashboards to wrangle, no tokens to rotate.
Provision mail for one domain or fifty. Each gets its own Worker and catch-all route, all in one inbox.
Replies group into threads automatically. Search across every message with full-text lookup.
Send from your domain, reply, reply-all, and forward. HTML and plain-text bodies, attachments included.
Authorize, pick domains, provision. Your inbox is ready before the coffee is.
Authorize Kiap to manage Email Routing and deploy a Worker. One scoped OAuth consent screen — no API tokens to create or paste.
Pick one or more domains from your Cloudflare account. Kiap enables Email Routing, deploys a Worker, and wires a catch-all rule.
Kiap deploys a Worker per domain, turns on Email Routing with the right MX and SPF records, and creates the catch-all route. A few seconds per domain.
Comparison
Email Inbox is not trying to be Gmail. It's mail on your domain, fast, with no server and no per-seat cost.
| Feature | Email Inbox | Gmail / Workspace | Zoho Mail |
|---|---|---|---|
| Catch-all on your domain | Yes, default | Paid Workspace | Per mailbox |
| Mail server to run | None | None | None |
| Provisioning | OAuth, seconds | Manual DNS | Verify + DNS |
| Per-seat cost | No | Yes | Yes |
| Send from your domain | Yes | Yes | Yes |
| Full-text search | Yes | Yes | Yes |
Comparisons reflect general product positioning as of 2025. Check each provider's current plans for specifics.
Looking for a specific comparison?
No. Kiap deploys a Cloudflare Worker to your account and uses Cloudflare Email Routing for inbound mail. There is no Postfix, no Dovecot, and no server to keep patched. You approve one OAuth consent screen and Kiap provisions everything.
No. Authorization happens through Cloudflare OAuth. You approve a scoped consent screen in your browser. Kiap never sees your Cloudflare password and you never paste a token.
Yes — that is the whole point. Pick any domain on your Cloudflare account and Kiap provisions a catch-all inbox on it. Every address on that domain lands in your inbox by default.
Yes. Select one or many domains during setup. Each gets its own Worker and catch-all route, and all mail arrives in one inbox you can search and thread.
Yes. Outbound mail goes through the same Cloudflare Worker using Cloudflare's send_email binding, so you send from your own domain. Replies, reply-all, forwarding, HTML and plain text, and attachments are all supported.
Email Inbox runs on Cloudflare's free Email Routing tier and a free-tier Worker. You bring the domain. Check the Kiap pricing page for plan details.
Authorize Cloudflare, pick your domain, and you're sending from it in minutes. No mail server, no API tokens.
Runs on Cloudflare's free tier. Bring your domain.