DMARC & email authentication, powered by Sendmarc
Stop cybercriminals impersonating your business.
Managed DMARC stops criminals sending fake emails from your domain. Using Sendmarc, we set up, monitor and manage SPF, DKIM and DMARC for you, protecting your clients, your reputation and your inbox delivery.
- Stop fake invoices sent in your name
- Protect clients and suppliers from spoofing
- Better email deliverability
- Full setup, monitoring and UK support
Thanks, your domain check is under way
We're checking now. Your DMARC, SPF and DKIM results will be emailed to within 1 business day.
Want to discuss your domain now?
Your free check covers
- DMARC statusIs your domain enforcing protection?At risk?
- SPF & DKIM recordsAre they set up correctly?Check
- Impersonation riskCould criminals email as you?Check
Certifications & partnerships
What happens when your domain isn't protected?
Criminals exploit unprotected domains to trick your staff, clients and suppliers.
Someone impersonates your business
Criminals send emails that appear to come from your domain, and nobody can tell the difference.
Clients pay fake invoices
Spoofed "new bank details" emails lead to real financial losses for your clients and suppliers.
You don't know it's happening
Without visibility, you can't see who is sending email using your name, until a client calls.
Reputation and compliance damage
Spoofing can lead to GDPR issues, lost business and email landing in spam.
See who is sending email using your domain
Sendmarc gives complete visibility of every service sending email as you. We use it to authorise the genuine ones and block everything else.
- Authorised senders identified and validated
- Unauthorised sources flagged and blocked
- SPF, DKIM and DMARC results for every email
- Real-time alerts for new threats
| Sending source | Volume | Result |
|---|---|---|
| Microsoft 365 | 482.2K | Pass |
| SendGrid | 120.4K | Pass |
| HubSpot | 65.1K | Pass |
| Unknown IP (185.199.x.x) | 12.3K | Blocked |
| Suspicious source | 8.7K | Blocked |
Watch the overview
See Sendmarc in action. Then check if your domain can be spoofed.
A quick look at how Sendmarc stops criminals sending emails that look like they come from you, without blocking your real email.
- How criminals fake your domainEmails that look like yours, sent to your clients and suppliers.
- How DMARC blocks themInboxes are told to reject email you didn’t send.
- How you get to full protectionStep by step to p=reject, without losing genuine email.
How Be Tech Secure uses Sendmarc to protect you
A fully managed service, combining Sendmarc with our security expertise.
- 1AssessWe audit your domains and email senders.
- 2ImplementWe fix SPF and DKIM and deploy DMARC.
- 3EnforceWe move you safely to full protection.
- 4MonitorOngoing reports, alerts and tuning.
What users say about Sendmarc
What Sendmarc users say in independent, verified reviews.
“Sendmarc simplifies DMARC management with clear visibility and responsive support.”
Verified review · 19 Aug 2026
Eace S.Assistant Director: IT Security · Mid-market (51–1,000 staff)“Sendmarc makes email authentication and domain protection simple.”
Verified review · 6 Aug 2026
Verified user in RetailMid-market (51–1,000 staff)“Intuitive platform with amazing support and an even better platform.”
Verified review · 4 Aug 2026
Ashton B.Applications Manager · Enterprise (1,000+ staff)
Managed DMARC protection for SMEs
Complete DMARC setup, monitoring and management, so you can focus on running your business. Every plan is tailored to your domains and sending services.
- DMARC monitoring and reporting
- SPF and DKIM setup and optimisation
- Protection for every domain you own
- Proactive alerts and UK expert support
- Sendmarc certified partner
- No long-term contracts
- Clear, practical advice
DMARC protects your name. Email security protects your inbox.
DMARC stops criminals sending email as you. To stop phishing, malware and ransomware reaching your staff, add our managed email security, or get everything in Fortify 360.
- Outbound protection: DMARC
- Inbound protection: email security
- One UK team for both
Find out if your domain is protected
Run a free DMARC check in seconds, or speak to one of our UK specialists.
- No obligation
- Takes seconds
- UK-based support
Sendmarc & DMARC: frequently asked questions
Last reviewed October 2026 by the Be Tech Secure security team
DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email standard that stops criminals sending email that pretends to come from your domain. Without it, anyone can send fake invoices or phishing emails as you. Google, Yahoo and Microsoft now expect it for business senders.
Yes. Without an enforced DMARC policy, criminals can send emails that look exactly like they come from your business, to your clients, suppliers and staff.
Sendmarc is a DMARC management platform that shows every service sending email as your domain and helps safely move your domain to full protection. We deploy and manage it for you.
Most SMEs reach full protection (p=reject) within 4 to 8 weeks. We move in safe stages, so legitimate email keeps flowing while unauthorised senders are blocked.
Done properly, it improves it. We identify and authorise every legitimate sender first, so your genuine email reaches inboxes more reliably and fake email is blocked.
Yes. We review, fix and optimise your SPF and DKIM records as part of the service, because DMARC depends on both being right.
Many businesses have a record set to "none", which monitors but does not protect. We review your current setup and take you safely to enforcement.
Yes. We protect all your domains, including unused ones criminals could exploit, and authorise services such as Microsoft 365, CRMs and marketing platforms.
It depends on the number of domains and sending sources and the level of management you need. Run the free domain check and we will send a clear recommendation and price.
No. DMARC stops criminals impersonating your domain. Our managed email security service protects your inboxes from phishing, malware and ransomware. Most businesses need both.
