DMARC Services for Businesses

At Daffodil IT, we provide fully managed DMARC services for businesses across Sheffield, Rotherham, Barnsley, Doncaster, Chesterfield and South Yorkshire.

We help businesses implement, monitor and maintain DMARC alongside SPF and DKIM to improve email security, protect brand reputation and increase trust in legitimate communications. 

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Protect Your Business from Email Spoofing with Managed DMARC, SPF & DKIM Services

Cybercriminals increasingly target businesses by impersonating trusted domains in phishing and business email compromise (BEC) attacks. If your organisation’s domain is not protected with DMARC, attackers may be able to send fraudulent emails that appear to come from your business.

Whether you use Microsoft 365, Google Workspace or another email platform, our specialists ensure your email authentication is configured correctly and managed on an ongoing basis.

What is DMARC?

DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email authentication protocol that helps prevent attackers from sending emails using your domain name.

Working alongisde SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail), DMARC verifies legitimate email senders and instructs receiving mail servers how to handle messages that fail authentication.

A correctly configured DMARC policy helps protect your business from:

  • Email spoofing
  • Phishing attacks
  • Business Email Compromise (BEC)
  • Brand impersonation
  • CEO fraud
  • Customer scams using your company name

Why Your Business Needs DMARC

Many organisations assume that using Microsoft 365 or Google Workspace automatically protects them against domain impersonation. In reality, without correctly configured DMARC, SPF and DKIM records, attackers may still be able to spoof your domain.

Implementing DMARC provides significant benefits, including:

For modern businesses, DMARC has become an essential part of a strong cybersecurity strategy.

Our Managed DMARC Services

At Daffodil IT, we don’t simply create a DMARC record and leave it there. We provide a fully managed service that ensures your email authentication remains effective as your business evolves.

1
DMARC Assessment
We review your current email environment to identify every legitimate service sending email on behalf of your business and highlight any authentication issues.
2
SPF & DKIM Configuration
We configure and optimise your SPF and DKIM records to ensure authorised systems can send email securely while maintaining compliance with DMARC best practices.
3
Safe DMARC Implementation
We deploy DMARC using a phased approach, beginning with monitoring before progressing to quarantine and reject policies. This helps prevent disruption to operations.
4
Ongoing Monitoring & Reporting
We continuously review DMARC reports to identify spoofing attempts, authentication failures and unauthorised senders, making recommendations to improve your security posture.

Microsoft 365 DMARC Specialists

As a trusted Microsoft Partner, Daffodil IT supports businesses using Microsoft 365 with secure email authentication and ongoing management.

We help organisations implement DMARC, SPF and DKIM correctly while ensuring genuine emails continue to reach customers, suppliers and employees without interruption.

Why Choose Daffodil IT?

Businesses across Sheffield and South Yorkshire trust Daffodil IT to deliver practical, proactive cybersecurity solutions.

When you choose our managed DMARC service, you benefit from:

We work with businesses throughout Sheffield, Rotherham, Barnsley, Doncaster, Chesterfield and the wider South Yorkshire region, helping strengthen their email security with confidence.

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Frequently Asked Questions

Do I need DMARC if I already use Microsoft 365?

Yes. Microsoft 365 provides excellent security features, but DMARC, SPF and DKIM should still be configured correctly to protect your domain from impersonation and improve email authentication.

Yes. We provide DMARC implementation and ongoing management for businesses using Google Workspace as well as Microsoft 365 and other email platforms. Our team will configure and validate your SPF, DKIM and DMARC records, ensuring your domain is protected against email spoofing while maintaining reliable email delivery.

DMARC helps prevent attackers from sending phishing emails that appear to come from your domain. It cannot stop all phishing emails but is one of the most effective ways to prevent domain spoofing.

Incorrect DMARC configuration can cause legitimate emails to fail delivery. That’s why many businesses choose a managed service to ensure safe deployment and ongoing monitoring.

Absolutely. We continuously monitor DMARC records, maintain SPF and DKIM records and ensure new email services are configured correctly as your business grows.

Ready to Protect Your Domain?

If you’re looking to protect your business from email spoofing and phishing, Daffodil IT can help. Speak to our team today.