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CMS Group Ltd

Technology Management Consultancy. Technology, run with intent. Since 1990.

0203 404 4700hello@cms-group.net
United Kingdom

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Registered in England and Wales · Company no. 02513535

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  1. Services
  2. /
  3. Secure
  4. /
  5. Email Security & Threat Filtering

Secure

Email Security & Threat Filtering

Stop phishing and malicious email before it reaches the inbox

Enterprise-grade email threat filtering that blocks phishing, malware, and business email compromise at the perimeter. We deploy and manage solutions that integrate with your existing email platform—Microsoft 365, Google Workspace, or on-premises—to provide consistent protection and visibility.

Zero Trust ArchitectureCyber Resilience
Discuss Email Security & Threat FilteringAssess strategic maturity

Available in:

LondonManchesterBirminghamLeedsBristolEdinburgh+ nationwide

Layered

Defender + optional third-party

Tuned

Policy and quarantine management

Visible

Threat reporting and trends

Challenges We Solve

  • Phishing attacks reaching users
  • Malware in attachments and links
  • Business email compromise risk
  • Spam overwhelming inboxes
  • No visibility of email-borne threats

Our Approach

We assess your current email security posture and recommend the right filtering layer for your environment. Our team deploys, configures, and maintains solutions from Microsoft Defender for Office 365 to third-party platforms such as Barracuda, Avanan, and Proofpoint—ensuring policies are tuned and incidents are triaged.

What You Get

  • Dedicated support team
  • Full visibility via CMS Strata
  • Regular service reviews
  • Proactive recommendations

Also in this area

Specific Solutions

Within Email Security & Threat Filtering, we offer the following solutions calibrated to different operating contexts.

Microsoft 365 Email Protection

Native security, expertly managed

Deployment and ongoing management of Microsoft Defender for Office 365—anti-phishing, anti-malware, safe links, and safe attachments—with policy tuning and incident response.

Key Features

  • Defender for O365 — Anti-phishing, safe links, safe attachments
  • Policy configuration — Tuned to your risk tolerance
  • Quarantine management — Review and release workflows
  • Threat reporting — Visibility of blocked and delivered threats
  • Incident triage — Response to email-borne incidents

Ideal For

Microsoft 365 customers seeking robust email security with a single-vendor stack.

Microsoft Defender for Office 365
Per user/month
Learn more

Third-Party Email Security

Best-in-class filtering beyond the platform

Deployment and management of third-party email security gateways and cloud email security—Barracuda, Avanan, Proofpoint Essentials, and others—for organisations requiring an additional layer or multi-platform coverage.

Key Features

  • Gateway or CASB deployment — Pre-inbox filtering
  • Phishing and BEC protection — Impersonation and credential theft prevention
  • Attachment and link sandboxing — Safe opening and detonation
  • Reporting and dashboards — Threat trends and policy effectiveness
  • Ongoing management — Policy updates and tuning

Ideal For

Organisations wanting best-of-breed email security or coverage across multiple email platforms.

BarracudaAvananProofpoint
Per user/month
Learn more

See How We've Helped

Discover how we've delivered results for organisations like yours across our service areas.

View case studies

See how we help your industry

FinanceHealthcareHospitalityLegalManufacturing

Related Service Areas

Security Operations (SOC/SIEM)

24/7 threat monitoring and incident response

Vulnerability Management

Find weaknesses before attackers do

Endpoint Protection

Advanced threat protection for every device

Ready to run with intent?

Assess your email security & threat filtering maturity in 2 minutes, then align priorities and governance actions with a specialist.

Assess Email Security & Threat Filtering maturitySpeak to a SpecialistCalculate Risk Exposure