MC894577 - Data loss prevention and Oversharing in New Outlook – Supported conditions

Updated November 7, 2024: We have updated the rollout timeline below. Thank you for your patience.

We’re rolling out new and improved DLP Policy tips in New Outlook to support top DLP predicates & exceptions, all advanced classifiers, and override capabilities.

* Features mentioned above are enabled based on Licenses. Please review license requirements here.

The number of supported conditions has been updated:

• E3 and equivalent licenses: DLP Policy tips on New Outlook for Windows will support following DLP conditions (and corresponding exceptions):
  • Content contains OOB/custom sensitive information types
  • Content is shared from Microsoft 365
• E5 and equivalent licenses: In addition to the above, DLP Policy tips on New Outlook for Windows will now support a richer set of DLP conditions (and corresponding exceptions), including the following:
  • Content contains Sensitivity label
  • Sender is
  • Sender domain is
  • Sender is member of
  • Recipient is
  • Recipient domain is
  • Recipient is a member of
  • Subject contains words

Additionally, DLP Policy tips now support advanced classifiers like Trainable classifiers, Exact data match (EDM), and Named Entities, as well as an override feature that gives end users the ability to quickly and easily modify or override policies (if allowed in the DLP rule configuration), ensuring that the sensitive data is always protected, while still allowing end users to work efficiently.

For more details, admins can refer documentation here.

Please note that any existing conditions outside this updated list, which may currently trigger Policy Tips in New Outlook, will stop working after October 18th, 2024.

When this will happen:

We will begin rolling out in mid-November 2024 (previously late October) and expect to complete rollout by late November 2024.

How this will affect your organization:

If you are not using New Outlook this shall not impact you.

If you do not configure the Data Loss Prevention policies to enable policy tips for emails with sensitivity labels, this will not impact you.

If your organization is currently using Data loss prevention policies to enable policy tips and Oversharing pop-up, you will soon see them in New outlook with enhanced experience.

What you need to do to prepare:

At this time, there is no action required from you.

You can access Data Loss Prevention in the Microsoft Purview compliance portal. You can create new DLP policies or leverage the existing ones to use DLP Policy tips as an additional layer of security for sensitive data.

Learn more:

• Learn about data loss prevention
• Learn about New Outlook