Compliance Problems

How to Send Automated Quarantine Email Reports in Microsoft 365

Natalie Taylor Oct 22, 2026 868 views

Question details

The user needs to automate reports that list quarantined emails and send them to end-users at specified intervals in Microsoft 365.

How to Send Automated Quarantine Email Reports in Microsoft 365

Product: Microsoft 365
Device & OS: not provided
Scenario: Configuring email compliance and setting up automated quarantine notifications for end-users.
Observed behavior: The user wants to establish a scheduled system to notify users about their quarantined messages instead of relying on manual checks by administrators.

Before you start

Verify your Microsoft 365 subscription type, as automated quarantine reporting features are exclusively available for Business and Enterprise environments using Microsoft Defender for Office 365. You will also need global administrator or security administrator permissions to access and configure these policies.

Solution 1Recommended

Configure Quarantine Policies in Microsoft 365 Defender

Set up end-user spam notifications via Quarantine policies in the Microsoft 365 Defender portal to automatically email reports to users.

In Microsoft 365 Business and Enterprise environments, administrators can automate quarantine reports by configuring specific quarantine policies. These policies dictate whether users receive automated notifications about their quarantined messages and control how frequently the reports are sent.

Access the Defender Portal

Navigate to Threat Policies

On the left navigation menu, go to 'Email & collaboration', select 'Policies & rules', and then click on 'Threat policies'.

Open Quarantine Policies

Under the 'Rules' section of the Threat policies page, click on 'Quarantine policies'.

Edit or Create a Policy

Select an existing policy to edit or click 'Add custom policy'. Provide a policy name and proceed to the 'End-user spam notifications' section.

Enable Notifications and Set Frequency

Check the box to enable end-user spam notifications. Choose a frequency from the dropdown menu (e.g., daily or every 3 days) to define how often users will receive the automated report, then save the policy.

Configure Quarantine Policies in Microsoft 365 Defender

Licensing Requirement: This feature requires Microsoft Defender for Office 365 Plan 1 or Plan 2, which is included in most Business Premium and Enterprise subscriptions.

Solution 2

Enable Notifications via Default Anti-Spam Policies

Activate built-in end-user spam notifications directly within the default anti-spam inbound policy.

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Frequently Asked Questions

Can personal Microsoft 365 Family users configure automated quarantine reports?

No, automated end-user spam notifications and customized quarantine policies are advanced security features designed exclusively for Microsoft 365 Business, Enterprise, and Education tenants managed through Microsoft Defender.

How often can Microsoft 365 send quarantine email reports to users?

When configuring end-user spam notifications in Microsoft 365 Defender, administrators can set the delivery frequency for automated quarantine reports to anywhere between 1 and 15 days.

Why are my end-users not receiving their automated quarantine notification emails?

Users might not receive reports if the quarantine policy assigned to the anti-spam rule does not have end-user spam notifications enabled. Additionally, emails quarantined due to high-confidence phishing or malware typically bypass user notifications entirely for security reasons.

Microsoft Office Security Issues