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Microsoft 365 Support in Dallas, TX

Setup, migration, and security for Microsoft 365 — configured deliberately rather than left on defaults, and licensed for what your team actually uses.

Request a Tenant Review What We Cover

Almost nobody configures it. They just start using it.

Microsoft 365 is easy to buy and easy to start using, which is exactly why so many tenants end up in the same state: functional, undocumented, and quietly insecure.

The typical pattern is that someone set it up years ago, licences were added as people joined, and nobody removed them as people left. External sharing is wide open because a client needed a file once. Legacy authentication is still enabled because an old scanner needed it in 2021. Nobody knows who has global admin.

None of this shows up as a problem until it does — a compromised mailbox forwarding invoices to an attacker, a SharePoint site shared with the whole internet, or an audit asking questions nobody can answer. Our work is getting the tenant into a state you could explain to a client, an auditor, or an insurer.

What we cover

Setup, migration, and the ongoing configuration work that keeps a tenant from drifting.

Migration to Microsoft 365

Moving from Google Workspace, an on-premises Exchange server, or a hosted mail provider — planned, tested, and cut over with mail, calendars, and contacts intact.

Identity and access

MFA enforced, conditional access rules that reflect how your team actually works, admin roles limited to who needs them, and legacy authentication turned off.

Email security

Anti-phishing and anti-spoofing policies, SPF, DKIM, and DMARC configured so your domain can't be impersonated, and external sender warnings your staff will actually notice.

Teams and SharePoint structure

A deliberate structure for where documents live and who can reach them, with controls on external sharing and site creation — before sprawl makes it a cleanup project.

Device management with Intune

Company data protected on the devices that access it, including staff phones. Available on Business Premium and useful the moment you have people working outside the office.

Licensing review

What you're paying for versus what's assigned and actually used. Unused licences and wrong-tier subscriptions are among the easiest savings available in most tenants.

What the defaults leave open

Microsoft ships M365 configured for adoption, not for your risk profile. These are the settings we most often find untouched.

Anyone can share with anyone

By default users can share files and folders with any external address, including anonymous links. Useful on day one, harder to justify once client data lives in SharePoint.

Legacy authentication still enabled

Older protocols that bypass MFA entirely. If they're on, your MFA has a documented way around it — and attackers know exactly where to look.

Mailbox forwarding rules unmonitored

A classic post-compromise move is a quiet forwarding rule copying mail to an outside address. Without alerting, it can run for months unnoticed.

Too many global admins

Admin rights accumulate and rarely get removed. Every extra global admin is another account whose compromise means losing the entire tenant.

None of these are flaws in Microsoft 365. They're configuration decisions that default to convenience, and nobody was assigned to revisit them. That's the work.

The gap most businesses don't know about

Worth stating plainly because the assumption is so widespread.

Microsoft does not back up your data. They replicate it across their infrastructure so their service survives their hardware failing. That protects Microsoft's availability, not your data.

If an employee deletes a SharePoint library, if a compromised account encrypts OneDrive files, or if someone leaves and clears their mailbox, you have a limited retention window to notice. After that, it's gone. Microsoft's own service agreement recommends third-party backup.

We cover this under backup and disaster recovery, but it's worth raising here because so many businesses believe they're already covered.

Common questions

Which licence do we need?

Depends on what you use, not what looks most complete. Business Standard suits most small teams; Business Premium adds device management and security worth having once staff work outside the office. We review current assignments first — most businesses pay for licences nobody uses.

How long does migration take?

Under 50 users, roughly two to four weeks including planning, a test migration, and cutover. The mail move itself often happens over a weekend; most of the time is preparation.

Will we lose email during the move?

A properly planned migration doesn't lose mail. Data is copied ahead of cutover and resynchronised before the switch, and nothing is deleted from the source until you've confirmed it all arrived.

Is Microsoft 365 secure by default?

Secure enough to be usable, not secure enough to leave alone. Default tenants often allow legacy authentication and unrestricted external sharing with no conditional access — which is where most M365 compromises start.

Does Microsoft back up our data?

No. They replicate for their own resilience and keep deleted items briefly. If something is deleted or encrypted and nobody notices before retention expires, it's gone.

Can you help with Teams and SharePoint?

Yes, and doing it early saves work. Both sprawl fast when anyone can create sites, producing duplicate document locations and oversharing. Retrofitting structure later costs far more.

Managed IT Services

Ongoing support and administration so the tenant stays configured the way it was built.

Get your tenant reviewed

Tell us what you're running. We'll look at configuration, security settings, and licence assignments, and tell you what's worth changing — including when the answer is very little.

Configuration audit What's open that shouldn't be.
Licence check What you're paying for versus using.
Fast follow-up We respond within 1 business day.
Call (214) 785-1766 or email info@xentztechnologies.com

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