Free · 30 seconds · No signup · Reads public DNS records only — no passwords, no mailbox access, nothing is ever changed
Tip: enter your domain alone (e.g. acme.co.uk) — your email address isn't needed for this scan.
… free scans run … unique domains checked
Easy Domain Audit Tool Unsure what to do? Click here to use our simple step-by-step tool instead!Why Your Business Emails Are Landing in Spam
Spam filters block business emails when a domain's SPF, DKIM and DMARC records are missing or broken — invoices, quotes and replies never reach the client. Our free 30-second scan checks all three and shows you exactly what to fix.
The Invisible Problem
Your emails look fine to you — but spam filters check hidden technical settings that prove you are who you say you are. Without these, Gmail, Outlook, and Yahoo treat your messages as suspicious.
The Cost to Your Business
Undelivered email costs real business: missed invoices, quotes that never arrive, and clients who go to a competitor because your reply landed in their junk folder. The free scan above shows where the gaps are.
What Hackers Exploit
Without proper authentication, criminals can send emails pretending to be your business — fake invoices to your clients, phishing emails to your staff. Your brand reputation on the line.
The free scan above shows exactly where the gaps are — and the fix plan shows what to change.
The 3 Security Checks Every Business Email Needs
Our scan tests three hidden settings that prove your emails are legitimate. Think of them as your email's passport, signature, and security policy.
Your Sender Passport (SPF)
Tells the world which servers are allowed to send email from your domain. Like an approved staff list at a bank — if someone isn't on it, they can't access your account.
Your Digital Signature (DKIM)
Adds an invisible digital wax seal to every email you send. When the recipient's email provider sees an intact seal, it's strong evidence the message really came from your domain and wasn't altered on the way.
Your Spam Rulebook (DMARC)
Tells Gmail, Outlook, and Yahoo how to handle emails that fail your security checks — deliver as normal, send to spam, or refuse them. The policy you choose, plus the provider's own filters, decide the outcome. Your email bouncer.
Enter your domain above to see your results for all three checks — free, instant, no sign-up required.
No personal data is kept. Domain lookups are read-only public DNS checks — we never store queries, track your browsing, or share details with third parties. The check list follows NCSC email security guidance.
How the Free Email Security Score Works
Email Score scores each domain out of 100. SPF contributes 33 points, DKIM 33, and DMARC 34. A protocol scores full marks when SECURED, 15 points when WARNING, and 0 otherwise. Letter grades follow the score: A+ at 95 or above, A at 85, B at 75, C at 65, D at 50, otherwise F.
| Check | What it verifies | Points | SECURED | WARNING |
|---|---|---|---|---|
| SPF (RFC 7208) | Only approved servers send email from your domain | 33 | 33 | 15 |
| DKIM (RFC 6376) | Every email carries an unbroken cryptographic signature | 33 | 33 | 15 |
| DMARC (RFC 7489) | Suspicious mail is quarantined or rejected, not delivered | 34 | 34 | 15 |
| Total | 100 | 0–100 score · grades A+ to F | ||
The scan also reports BIMI, MTA-STS, TLS-RPT, DNS blocklist listings and WHOIS registration health. Results marked UNKNOWN appear as "Not confirmed" and never count as a pass.
See the full scoring methodology — every weight, grade band and limit documented. Comparing options? Read Email Score vs EasyDMARC, DMARCian & dmarc.report — an honest feature comparison including what Email Score does not do.