Cloud and Microsoft 365
Identity, mail and devices are where most organizations now live. We design the tenant properly, integrate it with the network underneath, and run it as part of the same agreement.
Most tenants were set up in a hurry and never revisited
A Microsoft 365 tenant usually starts as a mailbox migration done under time pressure. Licensing is assigned by whoever asked loudest, sharing defaults are left wide open, legacy authentication is still permitted somewhere, and the security posture is whatever shipped in the box.
That works until it does not. The most common serious incident we respond to is not a sophisticated intrusion. It is a mailbox compromise that leads to an inbox rule quietly forwarding or hiding messages while an invoice fraud runs for weeks.
Tenant hygiene prevents that far more reliably than any product you can add on top.
Tenant review covers
- License assignment against actual usage
- Multi-factor authentication coverage and gaps
- Conditional access policy and legacy authentication
- Global administrator count and privileged access
- Mail flow, connectors and third-party relay paths
- Inbox rules, forwarding and delegate audit
- SPF, DKIM and DMARC alignment
- External sharing defaults in SharePoint and OneDrive
- Retention, litigation hold and audit log settings
- Device compliance and enrollment state
What we deliver
Identity and access, Entra ID
Directory design, group strategy, conditional access policy built around real access patterns, multi-factor enforcement, privileged role separation, and a joiner-mover-leaver process that actually gets followed.
Where a hybrid directory exists, we make the synchronization boundary explicit rather than leaving two sources of truth arguing with each other.
Exchange Online and mail flow
Mailbox migration and consolidation, mail routing including devices and applications that need to relay, anti-phishing and anti-spoofing configuration, and full SPF, DKIM and DMARC alignment so your mail is trusted and your domain is harder to impersonate.
We audit forwarding rules and delegate permissions on a schedule, because that is where compromise hides.
Intune and device management
Enrollment, configuration baselines, compliance policy tied to conditional access, update rings, application deployment and disk encryption with key escrow. A device that is not compliant should not be able to reach your data.
Onboarding and offboarding become a process rather than a favor.
SharePoint, OneDrive and Teams
Site and permission architecture that people can navigate, external sharing controls set deliberately, retention aligned to your obligations, and a file migration that does not leave half the data on a server nobody will decommission.
The goal is a structure the organization can maintain without a consultant.
Hosted workloads and infrastructure
Where a workload belongs on a server rather than in a service, we host and manage virtual machines sized to the actual load, with monitoring, patching, backup and a documented recovery path. We run our own infrastructure this way, so nothing here is theoretical.
Cloud hosting is not automatically cheaper. We will say so when it is not.
Backup for cloud data
Microsoft protects the platform. Your data inside it is still your responsibility, and native retention is not the same as backup. We deploy third-party backup for Exchange Online, SharePoint, OneDrive and Teams with a stated recovery point and tested restores.
Accidental deletion and mailbox compromise are the two cases that make this pay for itself.
The network and the tenant are one system
Treating Microsoft 365 and the local network as separate problems is how you get a wireless design that cannot enforce device compliance, a firewall that breaks Teams media, and a VPN that authenticates against a directory nobody is syncing anymore.
We design them together. Identity from the tenant drives network access policy. Quality of service on the local network reflects what Teams actually needs. Conditional access accounts for the sites and networks your people legitimately work from.
- Wireless authentication tied to directory identity
- Firewall and quality of service policy shaped for Teams media
- Conditional access aware of trusted locations and compliant devices
- Split-tunnel and remote access decisions made once, deliberately
- One directory as the source of truth, everywhere
We use what we sell
Infinity Networks runs Microsoft 365 as its own back office, hosts its own infrastructure, and puts its own public services behind a modern edge. Our recommendations come out of operating this stack daily rather than reading a vendor deck.
When we tell you a configuration is a problem, it is usually because we have already been on the wrong side of it.
Start with a tenant review.
A written picture of your Microsoft 365 posture: licensing, identity, mail flow, sharing and device compliance, with the gaps ranked by what would hurt most.