MC1472022 - [Outlook Mac] Purview Data Loss Prevention support for Calendar Events
Microsoft 365 Message Center announcement MC1472022.
MS Message Center's Summary
Microsoft Purview Data Loss Prevention policies will soon protect calendar events in Outlook for Mac by detecting sensitive information within meeting details. The rollout starts in late September 2026 and finishes by late September 2026. Existing data protection policies apply automatically without requiring administrator configuration. Review current compliance policies to ensure proper alignment with corporate standards before the release.
- Administrator impact
- No direct administrator action is required.
- End user impact
- Users will receive policy guidance when meeting invites contain sensitive data.
- Importance
- 3/10: This is an informational feature rollout that automatically extends existing compliance policies without causing service disruption.
Microsoft Summary
Outlook for Mac will support Microsoft Purview Data Loss Prevention for calendar events, detecting sensitive info in meeting details to prevent data leaks. Rolling out in late September 2026, it requires no admin action and extends existing DLP policies to calendar content for improved compliance.
- Message Center ID
- MC1472022
- Category
- stay Informed
- Severity
- normal
- Services
- Exchange Online, Microsoft Purview
- Tags
- New feature, Admin impact
- Published
- 2026-09-14
- Last updated
- 2026-09-14
- Expires
- 2026-12-28
[What and why:] Outlook for Mac will support Microsoft Purview Data Loss Prevention \(DLP\) policies for calendar events. Organizations can detect and help prevent the sharing of sensitive information in meeting subjects, descriptions, and invite content through policy tips, user remediation, and policy enforcement. This provides consistent compliance protection across email and calendar experiences on Mac devices. [Rollout schedule:] General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out on late September 2026 and expect to complete by late September 2026. [Impact on your organization:] This feature helps organizations extend Microsoft Purview Data Loss Prevention protections to calendar events created in Outlook for Mac. Users receive policy guidance before sending meeting invitations that contain sensitive information, helping reduce accidental data exposure and improve compliance. Organizations benefit from more consistent protection across email and calendar workflows while supporting regulatory and corporate data protection requirements. [Action required, Recommendations:] No administrator action is required to prepare for this feature. Existing Microsoft Purview Data Loss Prevention policies will automatically apply to supported calendar events in Outlook for Mac. Organizations with DLP policies already configured can benefit from expanded protection of calendar content without additional policy creation or client configuration. Administrators may choose to review existing DLP policies to ensure they align with their organization's compliance requirements.