ChangeIntel IT change radar
Public mode

No access to your tenant or devices. Every item links to its source. What this means

Sources need attention Customize Public modeDiscuss ChangeIntel on Discord
Service degradation Microsoft 365 admin center · degraded service

Users may be unable to connect to their mailboxes in Exchange Online through multiple connection methods

Posted 12 Nov 18:10 UTC, left the provider's feed by 12 Nov 18:34 UTC.

Microsoft 365 admin center status pageOn the status board
Unknown Duration: the provider stated no start
6Other incidents at the same time

What it affected

As the provider names it

Admin center

What the provider posted

Newest first
  1. 12 Nov 18:10 UTC User impact: Users may be unable to connect to their mailboxes in Exchange Online through multiple connection methods. More info: Potentially impacted connection methods may include: - Outlook on the web - Messaging API (MAPI) - Exchange ActiveSync (EAS) - Representational State Transfer (REST) API Current status: We’ve identified connectivity errors occurring on a portion of Exchange Online infrastructure which receives and processes users’ access requests. We’ve collected networking logs to review to further investigate the source of these errors and confirm our next steps. Scope of impact: This issue may affect users attempting to access their mailbox in Exchange Online using the affected connection methods. Next update by: Thursday, November 12, 2026, at 8:00 PM UTC

Around it

From the sources ChangeIntel reads; a match in time is not a cause

Keep track

What changed

  1. Incident state: Ongoing → Ended
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (1)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 12 Nov 2026 · 18:34:51 UTC Observed stateOngoing → Ended
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 13 Nov 20:36 UTC · 274 of 275 readable · 270 fully read · documentation 469/469 current

No accounts or analytics; your preferences stay in your browser. Information, not advice. ChangeIntel is an independent tool and is not affiliated with or endorsed by Microsoft, Apple, Google, Broadcom (VMware), Jamf, Oracle, Mozilla, or any other vendor it covers. Product names are trademarks of their owners. Built by Evotec.