InboxRhino

Receive-only test email API

Real inboxes for your tests. Create an address, wait for the email, open it in the browser.

InboxRhino gives developers and QA teams a real MX inbox for signup verification, password resets, magic links, and OTPs. No SDKs required.

Create free inbox5-minute quickstart
const key = process.env.INBOXRHINO_API_KEY;

const created = await fetch('https://api.inboxrhino.in/v1/inboxes', {
  method: 'POST',
  headers: { Authorization: `Bearer ${key}`, 'Content-Type': 'application/json' },
}).then((r) => r.json());

const mail = await fetch(
  `https://api.inboxrhino.in/v1/inboxes/${created.data.id}/messages?wait_seconds=180&limit=1&include=content&subject=Verify`,
  { headers: { Authorization: `Bearer ${key}` } },
).then((r) => r.json());

console.log(mail.data[0].subject);

Open the real email, safely

The console is a sandboxed mailbox viewer. Scripts, forms, popups, and remote images are blocked.

InboxRhino
Received

Verify your email address

Real MX

Addresses on test.inboxrhino.in receive real mail through Cloudflare. This is not a local SMTP sandbox.

Visual debug

Open the actual HTML in a sandboxed viewer. QA can see the email, not just assert on JSON.

Wait-for-message API

One request waits up to 180 seconds, filters by subject or sender, and returns the parsed body.

Pricing

Free is live. Paid INR plans are listed and marked coming soon. GST extra.

Full pricing

Free

Live

₹0

Enough to wire one flow

  • 11 active inboxes
  • 33 emails / month
  • 1 organisation user

Starter

Coming soon

₹199 / month

₹2,149 billed annually

  • 1,100 active inboxes
  • 3,300 emails / month
  • 3 organisation users

Growth

Coming soon

₹999 / month

₹10,789 billed annually

  • 6,600 active inboxes
  • 22,000 emails / month
  • 10 organisation users

Scale

Coming soon

₹2,499 / month

₹26,989 billed annually

  • 16,500 active inboxes
  • 55,000 emails / month
  • 25 organisation users

FAQ

Can test inboxes send mail?
No. Inboxes are receive-only. InboxRhino cannot send, reply, or forward as a generated address.
How long are messages kept?
30 days. After that, message content, headers, and attachments are deleted. The inbox itself stays until you delete it.
What is the free tier?
11 active inboxes, 33 inbound emails per UTC calendar month, and one organisation user. Enough to wire one flow on your laptop.
When can I pay in INR?
Paid Starter, Growth, and Scale plans are designed with INR prices and GST. Checkout is coming soon. The free tier is live now.