MFA & Verification Issues

How to Fix Microsoft 365 E3 Trial Identity Verification Error

Olivia Miller Oct 9, 2026 869 views

Question details

The user is unable to complete the Microsoft 365 E3 trial registration due to a mandatory identity verification error that requests additional information.

How to Fix Microsoft 365 E3 Trial Identity Verification Error

Product: Microsoft 365
Device & OS: not provided
Scenario: Attempting to sign up for a Microsoft 365 E3 enterprise trial account.
Observed behavior: The registration process fails and displays an error message requesting additional information to verify the user's identity, instructing them to contact Microsoft support.

Before you start

Before contacting support, ensure you are not connected to a VPN or using a virtual phone number, as these often trigger automated security blocks during registration.

Solution 1Recommended

Contact Microsoft Support for Manual Verification

Since the automated system has blocked your registration, you must reach out to Microsoft Support to have the verification block manually reviewed and cleared.

Identity verification blocks on enterprise trials like Microsoft 365 E3 cannot be bypassed locally. This is a server-side security measure implemented by Microsoft to prevent fraud and spam accounts.

The only officially supported way to resolve this error is to open a direct support ticket with Microsoft's account sign-up team.

Navigate to Microsoft Support

Open your web browser and go to the official Microsoft 365 support page.

Select the Appropriate Support Channel

Choose the support category specifically designed for account sign-ups, billing, or trial registrations.

Submit Your Information

Provide the exact email address you were trying to register and explain that you received an identity verification error during the E3 trial signup. The support agent will then manually review your case and clear the block.

Contact Microsoft Support for Manual Verification

Expected Response Time: Manual verification reviews by Microsoft Support typically take between 24 and 48 business hours to process.

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Frequently Asked Questions

Why did I get an identity verification error during the Microsoft 365 E3 trial signup?

This error typically occurs when Microsoft's automated security systems flag your IP address, browser footprint, or phone number as suspicious. Using a VPN, public Wi-Fi, or VoIP phone numbers are common triggers.

Is there a way to bypass the Microsoft 365 identity verification?

No, you cannot bypass this security measure. If you are flagged, you must either try registering from a completely different network and device, or contact Microsoft Support to manually authorize your signup.

Can I use a different phone number to clear the verification error?

Sometimes starting the registration process over in a private browsing window using a different, non-VoIP mobile phone number and a standard home internet connection can prevent the error from triggering.

Login & Account Issues