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 a free test inboxRead the InboxRhino API 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
IR

Inbox

cheerful-panda-x7k2

cheerful-panda-x7k2@test.inboxrhino.in

3 messages

Acme

Verify your email address

Welcome to Acme. Confirm your email address to finish setting up your account.

Papertrail Labs

Your August invoice is ready

Invoice PT-2048 is attached. Thank you for your business.

Northstar

Your secure sign-in link

Use this magic link to sign in. It expires in 10 minutes.

Received

Verify your email address

Acme<hello@acme.dev>

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. Starter is available with an access code. Paid checkout is coming soon.

InboxRhino pricing and quotas

Free

Live

₹0

Enough to wire one flow

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

Starter

Access code

₹0

Complimentary with an access code. Planned price: ₹199/month; checkout is not open.

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

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

Explore

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?
Starter is available at no charge with an access code. Paid checkout is coming soon; Growth and Scale are still planned.