Microsoft Defender for Office 365 Managed Services: Email and Collaboration Security

Managed service for Microsoft Defender for Office 365

Defender for Office 365 Managed Services provides continuous 24x7x365 management of email and collaboration security protections, helping organizations reduce the risk of phishing, malware, and impersonation attacks while keeping protection policies effective over time.

The service focuses on the day-to-day effectiveness of email protections, with ongoing tuning of policies, optimized quarantine management, and reduction of false positives. Microsoft Defender for Office 365 licenses are not included and must be available in the customer's tenant.

Onboarding and readiness

• Verification of existing baseline configurations.
• Alignment of key domains and mail flows at a high level.
• Definition of a pilot group and tuning approach.

Policy management, tuning and maintenance

• Review and maintenance of Safe Links protections.
• Review and maintenance of Safe Attachments protections.
• Anti-phishing and anti-impersonation settings.
• Anti-spam and anti-malware configuration and optimization.
• Management of exceptions and allow/block lists according to agreed governance.

Quarantine and reporting management

• Governance of quarantine trends and recurring cases.
• Management of false positives through an agreed process.
• Oversight of the user reporting flow, where active.

24x7x365 monitoring and event analysis

• Continuous 24x7x365 monitoring of relevant email security events and trends.
• Identification of attack patterns and improvement recommendations.
• Ongoing operational support for email protection incidents as they occur.

Reporting

• Monthly report on spam and phishing trends.
• Policy effectiveness.
• Key events and recommendations.

Deliverables

• Maintained and continuously tuned policies.
• Structured quarantine and false-positive management process.
• 24x7x365 monitoring of email security events.
• Monthly report covering effectiveness, trends, and recommendations.
• Summary change log of policy modifications.

Customer requirements

• Active Microsoft 365 tenant.
• Available Microsoft Defender for Office 365 licenses.
• Operational email domains and baseline configurations.
• Agreed administrative or delegated access.
• Customer contact available for approvals on allow/block/exception requests.

Licenses, tools, certifications, and software beyond what is listed are not included unless otherwise specified. This service does not include email or tenant migrations or complex re-architecture, advanced incident response or forensics, full 24/7 SOC management, complex initial implementations from scratch, or activities on non-Microsoft mail systems outside the tenant.