MC1129716 – (Updated) Microsoft Outlook Mobile adds support for DLP policy tips and enforcement

Product:

Microsoft 365 Apps, Outlook, Purview Communication Compliance, Purview Data Loss Prevention

Platform:

Android, iOS, mobile, Online, Web, World tenant

Status:

In development

Change type:

Feature update, Updated message

Links:

496146

Details:

Summary:
Microsoft Outlook Mobile was set to support Data Loss Prevention (DLP) policy tips and enforcement to prevent data leaks, aligning with desktop and web versions. However, this update has been rolled back after review, and further communication will follow when ready to proceed.

Details:
Updated September 29, 2025: After further review, we need to roll this back. We apologize for any inconvenience.
Introduction
Outlook Mobile for iOS and Android will soon support Data Loss Prevention (DLP) policy tips and enforcement. This update helps users avoid accidental data leaks by providing inline alerts or pop-ups when sensitive content is detected-based on admin-configured DLP rules. This enhancement brings DLP behavior in Outlook Mobile in line with Outlook for desktop and web, ensuring consistent compliance enforcement across platforms.
This message is associated with Microsoft 365 Roadmap ID 496146.
When this will happen
We will communicate via Message center when we are ready to proceed.

Change Category:
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Scope:
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Release Phase:
General Availability

Created:
2025-08-06

updated:
2025-09-29

Task Type

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Docu to Check

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MS How does it affect me

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MS Preperations

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MS Urgency

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linked item details

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summary for non-techies**

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Direct effects for Operations**

Data Loss Prevention (DLP) Policy Enforcement Rollback
The rollback of DLP policy tips and enforcement in Outlook Mobile may lead to increased risk of data leaks, as users will not receive alerts for sensitive content, potentially violating compliance regulations.
   - roles: Compliance Officer, IT Security Manager
   - references: https://learn.microsoft.com/microsoft-365/compliance/data-loss-prevention-policies, https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=496146

User Experience Impact Due to Lack of DLP
Without DLP policy tips, users may inadvertently send sensitive information without warnings, leading to confusion and frustration when data leaks occur.
   - roles: End User, Help Desk Support
   - references: https://learn.microsoft.com/microsoft-365/compliance/data-loss-prevention-policies, https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=496146

Configutation Options**

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Data Protection**

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IT Security**

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explanation for non-techies**

Microsoft recently announced an update for Outlook Mobile that aimed to enhance data protection by introducing Data Loss Prevention (DLP) policy tips and enforcement. This feature was designed to alert users with inline tips or pop-ups when they attempted to send sensitive information, such as credit card numbers or national IDs, through emails. The idea was to prevent accidental data leaks by making users aware of potential compliance issues before they hit "send."

Imagine you're sending a confidential document via email, and just as you're about to send it, a pop-up appears reminding you that the document contains sensitive information. This is similar to having a friend tap you on the shoulder just before you leave your house to remind you that you left your wallet on the table. It's a gentle nudge to ensure you don't forget something important, helping you avoid potential issues later on.

However, after further review, Microsoft decided to roll back this update for Outlook Mobile. This means that, for now, the DLP policy tips and enforcement feature will not be available on mobile devices. The rollback doesn't affect the existing DLP features on Outlook for desktop and web, where the feature is already in place and working as intended.

For organizations already using DLP policies on desktop or web versions of Outlook, no additional configuration is necessary once the mobile feature is reintroduced. It's like having a security system installed in your office; once it's set up, you don't need to do anything extra when you decide to expand its coverage to other areas of the building.

Microsoft plans to communicate further updates through their Message Center when they are ready to proceed with the mobile rollout. In the meantime, organizations can review their existing DLP policies to ensure they are ready to include mobile clients when the feature becomes available again. This preparation is akin to reviewing your company's safety protocols to ensure they cover all aspects of your operations, even those not yet fully implemented.