Microsoft 365 Management

CORE Microsoft 365 Management

Microsoft 365 administered like infrastructure.
Not left on autopilot.

Conditional access, license optimization, mail and SharePoint governance, and Purview compliance controls — reviewed on a schedule and mapped to HIPAA, CMMC 2.0, and GLBA, not configured once at rollout and forgotten.

Conditional Access Governance
License Optimization
Purview Compliance Mapping
Scheduled Access Reviews
The M365 Sprawl Problem

Nobody Owns the Tenant After the Rollout

Microsoft 365 deployments get careful attention during rollout and almost none afterward. Conditional access policies written for a smaller organization stay in place as headcount changes. Licenses assigned to contractors and departed employees keep renewing. Retention and DLP policies configured to satisfy one audit checklist item are never revisited against current regulatory obligations.

The waste compounds quietly. CoreView’s Microsoft 365 License Optimization Report found more than half of enterprise Office 365/M365 licenses are inactive, underutilized, oversized, or unassigned — a gap that shows up on the invoice every month whether or not anyone is looking at it.

Armorstack’s Microsoft 365 Management treats the tenant as a managed system: policies reviewed on a schedule, licenses reconciled against actual usage, and compliance controls mapped to the frameworks your industry actually enforces.

The Management Cadence

Configured Once Fails. Managed on a Cadence Works.

01

Monthly

License reconciliation against HR offboarding data and usage reports. Inactive licenses are flagged and reclaimed before the next billing cycle.

02

Quarterly

Conditional access policy review against current headcount and risk posture. DLP and retention policy audit against actual data-handling patterns, not the original rollout assumptions.

03

Continuous

Mail-flow and anti-phishing policy tuning in response to threat intelligence. Access anomalies route through the same CORE Baseline severity model as infrastructure incidents.

04

Annual

Full compliance mapping refresh against current framework revisions — HIPAA Security Rule updates, CMMC 2.0 assessment cycles, GLBA Safeguards Rule changes — so configuration doesn’t quietly drift out of alignment.

Why This Beats “Set It and Forget It”

Most M365 deployments get a burst of configuration attention at rollout and none afterward. A conditional access policy written for 40 employees doesn’t automatically make sense at 140 — and nobody notices until an access review, or an incident, forces the question.

What We Manage

The Tenant, End to End

Conditional Access Policy Management

MFA enforcement, device-compliance requirements tied to Intune, and location- and risk-based access policies — reviewed on a schedule, not set once at rollout. Break-glass accounts are documented and excluded from lockout scenarios.

License Optimization

Usage-based rightsizing between E3, E5, and Business tiers; automated flags on licenses inactive past a defined threshold; reclamation workflows tied to your HR offboarding process so licenses don’t outlive the employee.

Exchange Online Governance

Mail-flow rules, anti-phishing and anti-spoofing policy tuning, external-sender tagging, and mailbox retention aligned to your record-keeping obligations.

SharePoint & OneDrive Governance

Site-provisioning controls, external-sharing policy enforcement, and sensitivity-label application so document sprawl doesn’t become an access-control problem.

Purview Compliance Configuration

Retention policies and labels, eDiscovery readiness, insider risk management, and Data Loss Prevention policies configured against the specific data types your organization handles — PHI, CUI, or nonpublic financial information.

Reporting & Access Reviews

Scheduled access reviews, license utilization reports, and policy-change logs — the evidence artifacts an auditor asks for, generated on a cadence instead of assembled under deadline.

M365 Compliance Features, Mapped to Your Framework

Microsoft 365 ships with the technical capability to support HIPAA, CMMC 2.0, and GLBA obligations — Purview retention and DLP, sensitivity labels, conditional access, audit logging — but the capability being present in the tenant and the control being correctly configured and evidenced are different things. Armorstack maps Purview DLP policies to PHI for healthcare clients, aligns retention and access-review cadence to CMMC 2.0 practice requirements for defense contractors, and configures GLBA Safeguards Rule-relevant controls for financial services clients. See our HIPAA Compliance, CMMC 2.0 Compliance, and GLBA Compliance pages for how these map to your specific framework.

Frequently Asked Questions

Can you manage our existing M365 tenant, or do we need to start over?
We manage what’s already deployed. Onboarding starts with a configuration audit — conditional access, licensing, retention, and DLP — against your current headcount and compliance obligations, then we remediate gaps on a prioritized schedule. No forced re-platforming.
How do you handle license optimization without disrupting users?
License reclamation follows your HR offboarding workflow and a defined inactivity threshold — we don’t pull a license out from under an active user based on a report alone. Flagged licenses go through a review step before reclamation.
Do you configure Purview for HIPAA, CMMC, or GLBA specifically?
Yes. DLP policies, retention labels, and access reviews are configured against the data types and framework relevant to your organization — PHI for healthcare, CUI for CMMC-scoped defense contractors, nonpublic financial information for GLBA-covered institutions. Configuration is mapped to the framework, not a generic template.
Is this a one-time project or ongoing management?
Ongoing. M365 Management runs on the cadence above — monthly license reconciliation, quarterly policy review, continuous mail and access-anomaly monitoring — because a tenant configured once and never revisited is how sprawl happens in the first place.

Ready to Put Your M365 Tenant Under Management?

Conditional access, licensing, governance, and compliance — reviewed on a schedule, not left to rollout defaults.

Armorstack operates infrastructure for regulated industries: healthcare, financial services, manufacturing, and defense contractors. One contract. 24/7.