Free email deliverability checkSPF · DKIM · DMARC · MX

For anyone whose email quietly dies in spam

Find out if your email is landing or getting filtered, in three seconds.

Paste your domain. InboxRadar reads your SPF, DKIM, DMARC and MX the way Gmail and Outlook do, grades it A to F, and tells you exactly what to fix. Free. No login. Then it watches your domain and emails you the moment something breaks.

Check your domain

No signup. Results in about three seconds.

We read public DNS only. We never see your inbox, your mail, or your password. The check lands on a shareable scorecard you can send to whoever runs your DNS.

Half of "sent" email never reaches the inbox, and nobody tells you.

When SPF, DKIM, or DMARC is misconfigured, mailbox providers silently route your mail to spam or drop it. You find out when a customer says "I never got your email," or when replies just stop. The fixes are small DNS records. The hard part is knowing which one is wrong.

Paste

Your domain

Just the domain you send from. No account, no connecting your mailbox, about three seconds.

Read

What the receivers see

We check SPF, DKIM, DMARC and MX from public DNS, exactly the records Gmail and Outlook use to decide inbox or spam.

Fix

One clear scorecard

An A to F grade with a plain-English fix for each problem, ordered by impact. Send it to whoever runs your DNS and it is done.

Set a watch, and never get blindsided again.

Deliverability is not set-and-forget: a record gets edited, a DMARC policy quietly weakens, a new tool starts sending as you. InboxRadar re-checks your domain every day and emails you the moment its grade changes, so you hear it from us, not from a customer.

Pricing

The check and one watched domain are free, for as long as you want. Pro is for agencies and teams watching many domains.

Free
$0
  • Unlimited instant scorecards
  • Watch one domain, daily re-check
  • Email the moment the grade changes
  • No login, no card
Check a domain
Pro soon
$19 / mo
  • Watch many domains (agencies, portfolios)
  • Faster re-checks and blocklist monitoring
  • DMARC aggregate-report parsing in plain English
  • Team seats and a shared dashboard

Questions

Is it really free?

Yes. Every scorecard is free, and watching one domain with daily re-checks is free for as long as you want. No card, no login.

Do you need access to my email or mailbox?

No. InboxRadar reads only public DNS records (SPF, DKIM, DMARC, MX). We never see your inbox, your messages, or any password.

What is SPF, DKIM, and DMARC?

They are the three DNS records that tell Gmail, Outlook and others that mail from your domain is really you. If they are missing or wrong, your mail is far more likely to be filtered to spam. The scorecard explains each one and what to fix.

Can you tell me if I am in the inbox at Gmail specifically?

No tool can read Gmail's private reputation from outside, and we will never pretend to. We check the public records that drive most filtering decisions, which is where almost every deliverability problem starts and is fixable.

InboxRadar reads public DNS to help you fix email authentication. It is independent and not affiliated with Google, Microsoft, or any mailbox provider.