Summary
Microsoft Purview data loss prevention policies for Outlook on iOS and Android now support wait on send functionality. This update lets administrators configure a mandatory inspection period before messages leave the device, ensuring strict compliance and data protection. Rollout begins in late September 2026. Administrators should review current data loss prevention configurations and determine if this feature fits their security strategy.
Administrator impact: No direct administrator action is required.
End user impact: Mobile users might experience a brief pause during email transmission while data loss prevention policies are evaluated.
Score rationale: This is a standard administrative capability addition that requires proactive configuration only if adoption is desired.
Outlook for iOS and Android will support Microsoft Purview DLP wait-on-send policies, allowing organizations to require and configure a wait time for DLP evaluation before sending emails. This enhances sensitive data protection and policy enforcement, with rollout starting and completing in late September 2026.
Microsoft 365 Message Center ID: MC1472021
Published: 15 Sept 2026
Expires: 28 Dec 2026
Last updated: 15 Sept 2026
Category: Stay Informed
Tags: New feature, Admin impact
Status: Launched
Products & Platforms: Exchange Online, Microsoft Purview
Microsoft Message
Outlook for iOS and Android will support Microsoft Purview Data Loss Prevention \(DLP\) wait\-on\-send policies. Organizations can require a DLP evaluation before an email is sent and configure how long users must wait for policy evaluation to complete. This helps ensure sensitive information is inspected against organizational policies before messages leave the organization while providing administrators with flexible control over the user experience.
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 reduce the risk of sensitive information being sent before Microsoft Purview DLP policies can be evaluated. Administrators can require users to wait for policy inspection and configure the maximum wait time based on organizational requirements. This improves policy enforcement and compliance while allowing organizations to balance security, performance, and user productivity.
Action required / Recommendations
Administrators can review their existing Microsoft Purview Data Loss Prevention policies and determine whether wait-on-send enforcement is appropriate for their organization. To take advantage of this feature, administrators may enable and configure the desired wait period within supported DLP policies. No changes are required for organizations that do not plan to use wait-on-send enforcement.