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FREE TOOL
Free ToolsMicrosoft 365 Check

Microsoft 365 Security Check

See if your M365 tenant has default security gaps that most agencies don't know about.

We only check public DNS records - we never access your email or servers.

No signup required. Results are instant.

Just your domain - no www or https needed

HOW IT WORKS

What We Check

MFA

Checks readiness around multi-factor controls so stolen passwords are not enough to get in.

Legacy Auth

Highlights older authentication protocols that can bypass modern protections.

DMARC

Verifies whether spoofed emails using your domain are blocked, quarantined, or only monitored.

External Forwarding

Assesses risk from silent inbox forwarding rules that attackers commonly abuse.

COMMON QUESTIONS

Frequently Asked Questions

Is Microsoft 365 secure by default?

Microsoft 365 is powerful, but many critical protections are not fully enforced out of the box. Without extra configuration, common attack paths can remain open.

What is multi-factor authentication?

Multi-factor authentication adds a second verification step beyond just a password, such as an authenticator app prompt. It is one of the most effective ways to stop account takeover.

Can you check my actual M365 settings?

This tool checks external indicators and common default-risk areas. A complete assessment requires admin-level access to your tenant, which we include in our free IT audit.

What if my domain doesn't use M365?

No problem. This tool is specifically for Microsoft 365 environments. If you use another provider, run our Email Security Checker for a broader assessment.

How long does it take to fix these issues?

Most core improvements can be configured in one to two hours by someone with Microsoft 365 admin experience, depending on tenant complexity.

Want the Full Picture?

This Microsoft 365 Check checks one part of your security. Our free IT audit covers everything — security, performance, compliance, and infrastructure.

Book a Free IT Audit

30-minute call. No obligation. We walk you through every finding.