Know exactly who is sending email in your name
SealedMail monitors your domain's email security and sends you a weekly report in plain English. No dashboard to learn, no jargon to decode - just clear answers in your inbox.
£39 per domain, per month. No contract. Cancel any time.
Built for businesses that can't afford to get this wrong
Law firms
Client-account fraud starts with a spoofed email. See every attempt to use your domain.
DMARC for law firms →Financial services
Evidence of reasonable steps, consistent with your Consumer Duty obligations.
DMARC for financial services →Healthcare
Email security controls the NHS DSPT expects, with the evidence to show for it.
DMARC for healthcare →Accountants
Your clients' money and HMRC agent access make your domain a target. Know when someone tries to use it.
DMARC for accountants →Every UK business
If you send email from your own domain, DMARC monitoring tells you whether anyone else is too.
How it works →Email security monitoring without the homework
Plain English, not raw data
Your weekly report tells you what happened, what it means for your business, and whether you need to do anything - in language anyone can read.
Delivered to your inbox
No new software. No logins. No passwords. No staff training. Your report arrives by email every Monday, to whoever you choose.
One fixed price
£39 per domain, per month. No volume limits, no surprise charges, no annual lock-in.
Compliance-ready by default
Every report is formatted as audit evidence. When someone asks for proof your domain security is monitored, the answer is already in your inbox.
You are not buying software. You are hiring me.
I am Shaun Cooke. I built SealedMail, and I personally read your DMARC data, write your Monday report in plain English, and answer your emails, the same working day. No call centre, no ticket queue, no junior analyst, just one UK email-security specialist who knows your domain.
And because it is just me, I have built it to be robust: encrypted, backed up off-site every night, with a continuity plan, so the service does not depend on me being at my desk.
More about me →Up and running in four steps
See exactly where your domain stands today.
£39 per domain, per month. About two minutes through Stripe.
Or forward the details to whoever manages your domain. Five minutes' work.
Your first plain-English report arrives the following Monday.
Everything, for £39 per domain, per month.
Simple per-domain pricing. No contract. Cancel any time.
See what's included →New to DMARC?
DMARC is the email standard that lets you see - and eventually stop - anyone sending email that pretends to come from your domain. Start with our plain-English guide.
What is DMARC? →Used NCSC Mail Check?
The National Cyber Security Centre retired its Mail Check service on 31 March 2026, ending the free DMARC reporting that - by the NCSC's own figure - around 17,000 registered UK organisations relied on. SealedMail fills that gap - and the switch means updating just two DNS records.
See how SealedMail replaces Mail Check →Not sure where to start?
Get your free domain health check. It covers SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI and blacklisting status, scored and explained - with no sign-up, no commitment and no sales call afterwards.
Start your free health check