117579 – Outlook: Labeling email from attachment’s label in Outlook on the web and New Outlook

Product:

Outlook, Purview Communication Compliance, Purview Information Protection

Platform:

Web, World tenant

Status:

Launched

Change type:

Links:

100158

Details:

Outlook on the web and New Outlook will match the highest sensitivity label from attachments on email. Admins can configure this either using the cmdlet set-label policy advanced setting or the Compliance portal to configure the label policy (Roadmap 100158). Customers will automatically see or will be recommended that an email gets the higher label from an attachment's label. #newoutlookforwindows

Change Category:
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Scope:
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Release Phase:
General Availability, Targeted Release, Preview

Created:
2023-03-17

updated:
2025-07-16

Public Preview Start Date

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Docu to Check

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MS workload name

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linked item details

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summary for non-techies**

In Outlook on the web and the New Outlook, emails can automatically inherit the highest sensitivity label from any attachments, ensuring consistent security and confidentiality, which can be configured by admins using Microsoft Purview's Information Protection tools.

Direct effects for Operations**

Email Sensitivity Labeling
If the change is implemented without preparation, users may experience confusion or misclassification of emails due to automatic labeling based on attachment sensitivity, leading to potential data leaks or compliance issues.
   - roles: Compliance Officer, IT Administrator
   - references: https://techcommunity.microsoft.com/t5/security-compliance-identity/outlook-labeling-email-from-attachment-s-label-in-outlook-on-the/ba-p/3701230

User Experience with Email Management
Users may face disruptions in their email management workflows as emails are automatically labeled, which could lead to increased time spent on managing and understanding email classifications, impacting productivity.
   - roles: End User, Help Desk Support
   - references: https://techcommunity.microsoft.com/t5/security-compliance-identity/outlook-labeling-email-from-attachment-s-label-in-outlook-on-the/ba-p/3701230

Configutation Options**

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Data Protection**

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IT Security**

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explanation for non-techies**

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