Security Policy Errors

How to Fix a Disabled Email Quarantine Release Button in Microsoft 365

Phi Hung Vo Oct 12, 2026 871 views

Question details

The user is unable to release emails from quarantine because the Release button in the Microsoft 365 portal is unavailable or disabled.

How to Fix a Disabled Email Quarantine Release Button in Microsoft 365

Product: Microsoft 365
Device & OS: not provided
Scenario: Attempting to release legitimate emails blocked by Microsoft 365 security policies from the quarantine portal.
Observed behavior: The Release button is grayed out or disabled in the portal, preventing the user from processing the quarantined message.

Before you start

Ensure you have access to the Microsoft 365 admin center and verify that your account credentials are correct before modifying any administrative permissions.

Solution 1Recommended

Verify and Assign Administrator Roles in Microsoft Entra ID

The most common reason for a disabled Release button is insufficient account permissions. You need specific admin roles to release quarantined messages.

In Microsoft 365, managing quarantined emails is restricted to authorized personnel. Standard users or lower-tier admins cannot release administrative quarantines without the proper roles assigned in Microsoft Entra ID.

Access Microsoft Entra ID

Check current roles

Go to 'Users', select your account, and click on 'Assigned roles' to view your current permissions.

Assign necessary permissions

Ensure that your account has either the 'Global Administrator' or 'Security Administrator' role. If you do not have these, request a Global Administrator to assign the role to your account.

Relogin and test

Once the role is granted, sign out and sign back in to the Microsoft 365 Defender portal, then check if the Release button is now active.

Verify and Assign Administrator Roles in Microsoft Entra ID

Role Propagation Delay: It may take a few minutes for newly assigned roles in Microsoft Entra ID to propagate across all Microsoft 365 services.

Solution 2

Release Messages Using PowerShell

If you have the correct permissions but the portal button remains disabled due to a UI glitch, you can use PowerShell to bypass the interface.

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Frequently Asked Questions

Why is the Release button disabled in my Microsoft 365 quarantine portal?

The Release button is usually disabled because your account lacks the Global Administrator or Security Administrator role required to release certain types of quarantined messages, such as those flagged as high-confidence phishing.

Can standard users release their own quarantined emails?

Standard users can only release their own emails if the organization's quarantine policies are configured to allow it. Emails quarantined by strict anti-malware or anti-phishing policies typically require admin approval and cannot be released by standard users.

How do I find the Message ID to release an email via PowerShell?

You can find the Message ID by running the 'Get-QuarantineMessage' cmdlet in Exchange Online PowerShell. This will list the quarantined messages along with their respective Identities.

Does clearing the browser cache fix a disabled Release button?

If your account already has the correct Security Administrator permissions and the button is still grayed out, clearing your browser cache or trying an incognito window can resolve temporary portal interface glitches.

Microsoft Office Security Issues