Microsoft 365 administration for business tenants
I administer Microsoft 365 for organizations across Washington DC, Northern Virginia, and Maryland: identity, licensing, security policy, and the day-to-day tenant work most internal teams do not have time for.
ABOnsite provides IT services to businesses, nonprofits, and other organizations under contract. ABOnsite does not offer services to individual consumers or home users.
Tenant administration
- User and group lifecycle, licensing assignment, and license cost review
- Exchange Online mail flow, shared mailboxes, and distribution management
- SharePoint and OneDrive structure, sharing policy, and retention
- Teams governance and external access policy
Identity and access hardening
- Entra ID conditional access design and rollout
- MFA enforcement and legacy authentication blocking
- Named locations, device registration restrictions, and session controls
- Enterprise application and OAuth consent review, with admin consent workflow
- Sign-in and audit log review for anomalous activity
Migrations
Tenant-to-tenant consolidations, on-premises Exchange to Exchange Online, hosted Exchange to Microsoft 365, and file server to SharePoint. Cutovers are planned around your business calendar and rehearsed before the live move.
Microsoft 365 backup
Microsoft protects the platform, not your data retention obligations. I deploy and monitor third-party backup for Exchange Online, SharePoint, OneDrive, and Teams, with recovery tested on a schedule.
Call (571) 601-1660 or use the contact form.