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Email security consultant UK — DMARC implementation, Microsoft Defender for Office 365, email security audit & phishing protection. Microsoft Partner, 4.9★. From £500. Call 0203 834 9728.

— Email Security Consultant UK

EMAIL SECURITY
CONSULTANT

DMARC Consultant · Microsoft Partner · From £500

Coreitech provides expert email security consultancy for UK businesses — from DMARC implementation and email security audits to full Microsoft Defender for Office 365 configuration, phishing protection, and ongoing managed email security. Microsoft-certified engineers, fixed-price engagements.

DMARC implementation — monitoring to enforcement
Email security assessment & audit
Microsoft Defender for Office 365 setup
Anti-phishing & BEC protection
Email authentication (SPF/DKIM/DMARC)
Phishing simulation & staff training
Email encryption (Purview, S/MIME)
Ongoing managed email security
— Services

Email security consultancy services

DMARC Implementation

End-to-end DMARC deployment — SPF audit, DKIM signing for all sending sources, DMARC policy from monitoring to enforcement. Managed reporting and ongoing tuning.

Email Security Assessment

Full audit of your email security posture — SPF/DKIM/DMARC, Microsoft Defender configuration, anti-phishing policies, Safe Links/Attachments, and gateway settings.

Microsoft Defender for Office 365

Full configuration and ongoing management of Defender for Office 365 — anti-phishing, Safe Links, Safe Attachments, impersonation protection, and threat investigation.

Anti-Phishing & BEC Protection

Technical controls and staff training to prevent phishing and business email compromise — MFA, impersonation AI, DMARC, Conditional Access, and finance team procedures.

Email Authentication Services

SPF, DKIM, and DMARC implementation and management for complex environments — multiple domains, third-party senders, marketing platforms, and legacy systems.

Email Encryption

Microsoft Purview Message Encryption setup, S/MIME configuration, and TLS enforcement — ensuring sensitive emails are protected in transit and at rest.

Security Awareness Training

Phishing simulation campaigns and email security training for staff — building a human firewall that recognises and reports phishing attempts.

Ongoing Managed Email Security

Continuous management of your email security stack — policy updates, DMARC report analysis, new threat response, monthly security review, and incident response.

— Why Coreitech

Why choose Coreitech as your email security consultant?

Microsoft Partner

Certified Microsoft Partner with SC-200 and MS-500 qualified engineers. We manage M365 for 200+ UK businesses.

Fixed-price engagements

All consultancy is scoped and priced upfront. No hourly billing, no scope creep invoices, no surprises.

DMARC specialists

We've implemented DMARC across dozens of UK businesses — from simple single-domain setups to complex multi-domain environments with multiple third-party senders.

Ongoing support available

Most clients move to our managed email security service after initial implementation — continuous monitoring, tuning, and incident response.

— FAQ

Email security consultant — frequently asked questions

4.9 / 5 — 200+ reviews

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Free 30-minute discovery call — we'll review your email security posture and recommend the right engagement. Fixed-price proposals with no obligation.