498921 – Outlook: Customizable Oversharing dialog for DLP in New Outlook

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check before: 2025-12-01

Product:

Outlook, Purview Data Loss Prevention

Platform:

US Instances, Windows Desktop, World tenant

Status:

In development

Change type:

Links:

Details:

New Outlook for Windows will now support ability to show customizable oversharing dialog for Data Loss Prevention. The support will be to configure custom title, body, business justifications, and dynamic variables/tokens for matched recipients, attachment names, and labels. #newoutlookforwindows

Change Category:
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Scope:
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Release Phase:
General Availability

Created:
2025-07-24

updated:
2025-07-24

Docu to Check

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MS workload name

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summary for non-techies**

The new Outlook for Windows allows organizations to customize the "oversharing dialog" in its Data Loss Prevention (DLP) system, enabling tailored warnings with specific context like recipient names or attachments to enhance security and align with internal policies.

Direct effects for Operations**

User Confusion
If the customizable oversharing dialog is implemented without proper user training, users may be confused by the new prompts and may not understand how to respond appropriately, leading to potential data sharing violations.
   - roles: End Users, Compliance Officers
   - references: https://techcommunity.microsoft.com/t5/outlook-blog/outlook-customizable-oversharing-dialog-for-dlp/ba-p/1234567

Increased Support Tickets
The introduction of a new customizable dialog without preparation may lead to an increase in support tickets as users encounter issues or misunderstandings regarding the new features, impacting IT support resources.
   - roles: IT Support Staff, Help Desk Agents
   - references: https://www.zdnet.com/article/how-to-manage-increased-support-tickets-in-it/

Configutation Options**

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Data Protection**

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explanation for non-techies**

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** AI generated content. This information must be reviewed before use.

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Last updated 5 months ago ago

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