Take a look and decide whether this affects your tenant, users or support teams.
Primary Audience
Why this score?
AT A GLANCE
END USERS
IT ADMINS
ROLLOUT TIMELINE
Early August 2026
📢 Official Microsoft Message Center Announcement
(Updated) Collect Diagnostics change to Get Diagnostics for Outlook Mobile and Mac
Message ID: MC1308855 (Updated)
Updated August 5, 2026: We have updated the timeline. Thank you for your patience.
[Introduction]
We’re updating the Collect Diagnostics feature name to Get Diagnostics for Outlook Mobile and Outlook for Mac. Along with this rename, diagnostic logs sent during support interactions will now be routed through the Microsoft 365 diagnostics service instead of the legacy PowerLift service. This change aligns Outlook with other Microsoft clients, simplifying support workflows and providing a more consistent diagnostics experience.
[When this will happen:]
General Availability (Worldwide): Rollout will begin early August 2026 (previously late July) and is expected to complete by late August 2026 (previously mid-August).
How this affects your organization:
Who is affected:
- Organizations using Outlook Mobile (iOS and Android)
- Organizations using Outlook for Mac
- IT admins maintaining documentation referencing Collect Diagnostics
What will happen:
- The feature name changes from Collect Diagnostics to Get Diagnostics in Outlook Mobile and Outlook for Mac.
- Diagnostic logs will be sent to the Microsoft 365 diagnostics service instead of the PowerLift service.
- There is no change to user workflow or behavior beyond the updated name.
- No admin configuration changes are required.
- The feature remains enabled by default.
What you can do to prepare:
- Update internal documentation, training materials, and helpdesk scripts to reflect the new name Get Diagnostics.
- Review network allowlists:
- Outlook Mobile and Outlook for Mac will no longer use the *.acompli.net endpoint for Get Diagnostics.
- The *.acompli.net endpoint is still required for:
- Outlook Contact Support
- Other Microsoft clients such as Company Portal and Microsoft Authenticator
- No other action is required if *.acompli.net is already allowlisted.
Learn more: Outlook for iOS and Android in Exchange Online: FAQ | Microsoft Learn
Compliance considerations:
| Area | Explanation |
| Does the change alter how existing customer data is processed or accessed? | Diagnostic logs from Outlook Mobile and Outlook for Mac are now routed to the Microsoft 365 diagnostics service instead of the PowerLift service. The data type remains the same; only the backend service changes. |
Source: Microsoft Message Center • Analysed by MWPro
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