Microsoft 365 Support in Savannah, GA

Microsoft 365 Support in Savannah, GA, Security-First M365 Management from COMNEXIA

COMNEXIA has managed Microsoft 365 environments for Georgia businesses since before Exchange Online existed as a product. Headquartered in Roswell and serving Savannah-area companies in Chatham County, we configure, secure, and actively manage M365 tenants so your staff stops losing time to misconfigured permissions, unsent email, and unlicensed accounts. If your business runs Exchange Online, SharePoint, OneDrive, or Teams and nobody owns the admin console, you are operating with an unmonitored attack surface.

What Microsoft 365 Support Actually Covers

Support is not a help-desk ticket for a forgotten password. For COMNEXIA clients in Savannah, Microsoft 365 support means owning the full configuration layer of your tenant. That includes Exchange Online mail-flow rules and connector hygiene, SharePoint site permissions and external-sharing policies, OneDrive known-folder-move deployment via Group Policy or Intune configuration profiles, and Teams channel governance so sensitive dealership data does not leak into guest-accessible workspaces.

Every engagement starts with a documented baseline audit of your existing tenant: license assignments, admin role holders, legacy authentication status, and MFA enrollment rates. We then remediate gaps before they become incidents.

Identity and Security Controls We Enforce

Most Savannah businesses running M365 have Global Administrator accounts with no MFA and legacy authentication protocols (IMAP, POP3, SMTP AUTH) still enabled. Both conditions are exploited in credential-stuffing attacks daily. COMNEXIA enforces the following controls as standard on every managed tenant:

• Microsoft Entra ID Conditional Access policies that block legacy authentication and require compliant devices before granting access to Exchange Online and SharePoint
• Entra ID Identity Protection risk-based sign-in policies that step up to MFA or block logins flagged as high-risk
• Microsoft Intune device compliance profiles for Windows and iOS endpoints, enforced through Conditional Access so unmanaged personal devices cannot reach corporate data
• Privileged Identity Management (PIM) for Global Admin roles, requiring just-in-time elevation with approval workflow instead of standing admin access
• Defender for Office 365 Plan 1 anti-phishing and safe-links policies configured to quarantine rather than deliver suspicious attachments

These are not optional add-ons. They are the minimum configuration a security-first MSP applies before considering a tenant production-ready.

Tenant Migration and Cutover Steps

Savannah companies moving from on-premises Exchange or from a previous provider's shared hosting to Exchange Online follow a documented migration sequence with COMNEXIA. We perform a staged migration using the Microsoft 365 Migration Wizard or third-party tooling (BitTitan MigrationWiz for large mailbox counts), verify MX record TTL reduction, complete a test cutover with a pilot group, synchronize on-premises Active Directory to Entra ID using Microsoft Entra Connect, and then cut MX records only after confirming mail flow in both directions. Post-cutover, we decommission legacy authentication and retire the on-premises connectors. Every step is documented in a written runbook your team retains.

Microsoft 365 Support for Savannah Auto Dealerships

Dealerships running CDK Global, Reynolds and Reynolds, or Dealertrack need M365 to coexist cleanly with DMS integrations, often over legacy network paths. COMNEXIA has configured Teams Phone and Exchange Online in dealership environments where DMS vendor support teams still require open SMTP relay. We segment that relay through an approved Exchange Online connector with IP restrictions rather than enabling broad SMTP AUTH across the tenant.

The FTC Safeguards Rule (16 CFR Part 314), now enforced for auto dealers, requires access controls and encryption for customer financial data. Microsoft 365 supports compliance here through Entra ID Conditional Access, Microsoft Purview sensitivity labels on deal jackets stored in SharePoint, and Intune-enforced BitLocker encryption on F&I workstations. COMNEXIA maps these controls to your Safeguards Rule written information security program so the configuration is not just technical but documented for examiner review.

Ongoing Management: RMM, Patching, and Monthly Reporting

Microsoft 365 licenses and Entra ID policies drift without active management. COMNEXIA monitors tenant health using NinjaOne for Windows endpoint patch compliance and ConnectWise Manage for ticketing and SLA tracking. Each month, Savannah clients receive a tenant health report covering license utilization, stale guest accounts, MFA adoption percentage, Secure Score delta, and any Conditional Access policy failures logged in Entra ID sign-in logs. If your Secure Score drops because Microsoft adds a new recommendation, we review it and either implement or document the accepted risk in writing.

Get Microsoft 365 Support for Your Savannah Business

COMNEXIA has supported Georgia businesses for 35 years. If your Savannah organization is running an unaudited M365 tenant, operating without Conditional Access, or preparing to migrate from on-premises Exchange, call us at (877) 600-6550 to schedule a tenant assessment. We will review your Entra ID configuration, license assignments, and security posture and give you a written findings report before any engagement begins.