New Outlook for Windows rollout control

Timeline

From the capture of 13 Oct 00:08 UTC

Published timing needs confirmation August 2026 most recent · 7 weeks ago

2 dates
3 undated sections
7 with conditions

Enforced31 Dec 2024 Now: Enforced; the override no longer helps
AnnouncedAugust 2026 Published timing is qualified; effectiveness is not confirmed.

31 Dec 2024 21 months agoEnforced
- Block new Outlook installation as part of Mail and Calendar deprecationMilestone
August 2026 7 weeks agomonth windowmidAnnounced · unconfirmed
- How to enable new Outlook for Windows Public Preview in DoD and GCC HighMilestoneExceptionScopeRecommendationTentative2 conditions

Settings and overrides named on this page

Registry values, policies and cmdlets the source mentions, with the dated steps that name them. Read the source for the values to set.

GCC-High

Requirements, exceptions and scope

Block new Outlook preinstallation on WindowsRecommendation1 condition1 passage
To verify that the app is installed, check whether the logs folder exists under: %localappdata%\Microsoft\Olk\logs. In some cases, users might not have the app installed…
Block mailbox access on new OutlookExceptionRecommendation2 conditions2 passages
How to enable new Outlook for Windows Public Preview in DoD and GCC HighRequirementScopeRecommendation4 conditions8 passages
GCC-High

Extracted automatically from Microsoft's wording. Confirm dates, conditions and whether they apply to you in the source before acting; a month or quarter is a window, not a day.

Observed history and review priority

Captured 13 Oct 00:08 UTC; extracted 16 Oct 16:10 UTC. Extractor: microsoft-1/9/fc65ebeb286710c0a830833db8a7e5de7e266b79981fe9c7c34479be9369ad3c.

Review priority. Extracted assertions require review · Publisher marks guidance tentative · Applicability or exceptions require review

0 date changes and 0 condition changes across 0 compared revisions. Suggested check interval: 24 hours.

Earlier unavailable versions and edits between checks are unknown. A missing statement requires review; it does not mean the policy was cancelled. Recovered historical statements are not original revision snapshots.

Retained observations · 2

Compact evidence remains available after full document bodies expire. Earlier extractions can have different vocabulary or capture limitations.

13 Oct 00:08 UTC · 18 candidates
8 Oct 23:14 UTC · 20 candidates