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

Product:

Outlook, Purview Data Loss Prevention, Windows

Platform:

US Instances, Windows Desktop, World tenant

Status:

Rolling out

Change type:

Links:

MC1202974

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:
2026-01-17

Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

Please, look at the most relevant linked item for details

explanation for non-techies**

Imagine you're sending a confidential document via email, and just before you hit send, a friendly pop-up appears asking if you're sure you want to share this information. This pop-up is like a gentle nudge from a colleague reminding you to double-check before sending sensitive data outside the company. In the world of IT, this is known as a Data Loss Prevention (DLP) feature, and it's designed to help prevent accidental sharing of sensitive information.

The new Outlook for Windows is introducing a customizable version of this pop-up, which is referred to as an "oversharing dialog." Think of it as a customizable alert system that can be tailored to fit your organization's specific needs. Just like how you might customize a greeting card with a personal message, this feature allows you to adjust the title and body of the alert, ensuring it communicates the right message to your team.

Additionally, this feature can dynamically insert specific details such as the names of recipients, attachment names, and labels into the alert. It's similar to how a GPS system provides real-time directions based on your current location. By incorporating these dynamic elements, the alert becomes more relevant and informative, helping the sender make a more informed decision about whether to proceed with sending the email.

This new feature is particularly useful for businesses that handle sensitive information regularly. It provides an extra layer of security by prompting users to consider the implications of their actions, much like a seatbelt reminder in a car encourages drivers to buckle up for safety. By implementing this customizable oversharing dialog, organizations can better protect their data and reduce the risk of accidental data breaches.