CLI Secure
managed dmarc · stop domain spoofing

Stop criminals sending email as you

We configure SPF, DKIM and DMARC across your domains and safely move you to enforcement — so no one can spoof your brand to phish your customers or staff.

What's included
Trusted by London SMEs Cyber Essentials ISO 27001 aligned
Crystal protected email

DMARC pass

SPF ✓ DKIM ✓

Spoof rejected

policy · p=reject

SPF·DKIM·DMARC

fully configured

p=reject

the goal, done safely

100%

visibility of who sends as you

BIMI

your logo in the inbox

Managed DMARC

Speak to a security specialist

Free assessment · no obligation · 24/7 UK SOC

› anyone can send as you

Your domain is a target — and a liability

Without DMARC at enforcement, criminals can send emails that look exactly like they came from you — invoicing scams, CEO fraud, phishing your clients. We shut that down and prove only your approved services can use your name.

  • See every sender using your domain
  • Authenticate the real ones with SPF & DKIM
  • Reject the spoofers — safely, without breaking mail
cli-secure · dmarc report

Who's sending as acme.co.uk

p=reject
Microsoft 365SPF ✓ DKIM ✓pass
Marketing platformalignedpass
Payroll SaaSalignedpass
Unknown sender · 45.x.x.xspoof · rejectedfail

› what's included

Email authentication, done properly

From first report to full enforcement and BIMI — configured, monitored and maintained for you by CLI Secure.

SPF, DKIM & DMARC setup

We configure all three email-authentication standards correctly across your domains.

Full visibility

See every service and sender using your domain — legitimate or not.

Aggregate & forensic reports

We collect and translate raw DMARC reports into clear, actionable insight.

Stop spoofing

Block criminals from sending phishing emails that impersonate your brand.

Safe path to reject

Move from monitor to p=reject without breaking legitimate mail.

BIMI & brand trust

Display your verified logo in inboxes to boost trust and open rates.

Deliverability

Proper authentication keeps your genuine email out of the spam folder.

Change management

Every DNS change reviewed and documented, so nothing slips or breaks.

Compliance evidence

Anti-spoofing controls mapped to Cyber Essentials, ISO 27001 & insurers.

› how we deliver

From spoofable to enforced — safely

01

Discover

We deploy DMARC in monitor mode to reveal everyone sending as your domain.

02

Align

We authenticate every legitimate sender with SPF and DKIM.

03

Enforce

We tighten policy to quarantine, then p=reject — safely, in stages.

04

Maintain

Ongoing monitoring, reporting and updates as your senders change.

› free domain check

Can someone spoof your domain right now?

Book a free check. We'll review your SPF, DKIM and DMARC records and tell you exactly how exposed your domain is to spoofing.

  • Free review of your email-authentication records
  • A clear picture of who can send as you
  • A safe plan to reach p=reject, no pressure

No spam. We'll only use your details to arrange your assessment.

Why run Managed DMARC with CLI Secure

Protect your brand

Stop criminals impersonating you to your customers and staff.

Fully managed

We handle the DNS, the reports and the safe move to enforcement.

Better delivery

Authenticated mail lands in inboxes, not spam.

Done right, fast

We reach enforcement without the false starts that break email.

› faq

Managed DMARC, answered

› let's talk

Ready to hand off the IT headaches?

Leave your details and a London-based engineer will call you back — usually within one business hour. No sales scripts, no obligation.

020 3355 1151 [email protected]

Mon–Fri, 8am–6pm · 24/7 for managed clients

Or explore Managed IT →

› quick callback

No spam. We'll only use your details to respond to your enquiry.