Mail Check is gone. Your domains still need watching.
The free NCSC service that monitored your email security has shut down. Blankitt DMARC is the UK-built, UK-supported replacement — and our importer picks up exactly where Mail Check left off.
UK-built · tenant-isolated · every feature on every plan · no card to assess
Free domain assessment
See your live DMARC posture — and whether your reports were going to NCSC Mail Check. No login required.
One-click migration
From Mail Check to protected — the same day
The importer is built for the switch. It preserves your existing policy, never downgrades you, and gets reports flowing again fast.
Assess
Enter your domain. We read your live SPF, DKIM, DMARC, MTA-STS and TLS-RPT records and flag if your reporting was pointed at an NCSC Mail Check address.
Switch
We generate the exact replacement DMARC record — keeping your current policy, never downgrading — pointing reports to your Blankitt ingest address. Copy, paste, done. Bulk import for trusts and MATs with many domains.
Verify
We confirm DNS propagation and show your first parsed aggregate report, with the monitoring gap since 31 March clearly logged for your auditors.
Why Blankitt
Built for the UK public sector
No overseas pure-play can offer the assurance you have to evidence. We can.
UK-built & UK-supported
Built, run and supported by the UK team behind the Blankitt platform. Reports are encrypted and tenant-isolated — or self-host them for full data control. The assurance public-sector buyers must evidence.
Every feature, every plan
No feature gating. Aggregate & forensic reporting, policy simulator, MTA-STS, TLS-RPT, full API and sender identification on every tier — including Free.
Transparent pricing
Public prices and generous domain allowances, no quote-gating — sized to sit under sub-threshold procurement limits so most public bodies can buy directly.
Self-host option
A perpetual, air-gapped-friendly licence for defence, government and regulated estates that can’t use shared cloud — your data stays on your own infrastructure.
Easy to buy
Procurement-ready
Our transparent pricing is designed to sit under sub-threshold limits, so most public bodies can buy directly under the Procurement Act 2023 — no framework wait. Annual invoicing, a DPA, and a security pack (DSPT / Cyber Essentials position) come as standard, and we’re building toward a G-Cloud listing. Talk to us about your route and we’ll make the paperwork painless.
Mail Check migration — your questions
Has NCSC Mail Check shut down?
Yes. NCSC Mail Check, the free UK government DMARC reporting service, was switched off on 31 March 2026 (aggregate reporting had already been wound down through 2025). Affected public-sector domains now have no automatic email-authentication monitoring, and the NCSC advises adopting a commercial DMARC tool.
What replaces NCSC Mail Check?
There is no government-provided replacement. Blankitt DMARC is a UK-built, UK-supported commercial option with a one-click importer designed specifically for the switch — it preserves your existing policy and gets aggregate reports flowing again the same day.
Will I lose my DMARC policy when I migrate?
No. The importer reads your current record and generates an exact replacement that preserves your existing p=, pct= and sp= posture. It never silently downgrades your policy — it only re-points reporting to your Blankitt ingest address.
Can public-sector bodies buy Blankitt easily?
Yes. Transparent pricing is sized to sit under sub-threshold limits, so most public bodies can buy directly under the Procurement Act 2023 without a framework wait. Annual invoicing, a DPA and a security pack come as standard, and we are building toward a G-Cloud listing.
Don’t leave your domains unwatched
Every week without DMARC monitoring is a week of unchecked spoofing risk. Start with a free assessment — it takes seconds.
Check my domain — freeNCSC Mail Check and Web Check were retired on 31 March 2026. Blankitt is an independent commercial provider and is not affiliated with, endorsed by, or acting on behalf of the NCSC.