Provider trouble · Nov 12, 2026 · going on
56 companies posted about trouble at Microsoft 365
The first posted at Nov 12, 17:40 UTC, the last 3 hours later. 56 companies wrote about it in their own words.
Microsoft 365 posted on its own status page at 18:10 UTC, 30 minutes after the first company.
176 companies in our directory rely on Microsoft 365.
When they first posted
Companies by when their status page first showed it, 10 minutes a column. The most, 10, in Nov 12, 18:20–18:30 UTC.
What they said
Quoted from their status pages. Times are UTC.
- Missive: “Microsoft 365 availability issues”
- Adobe: “Adobe Acrobat Sign: Major issue (APAC, Americas, EMEA)”
- Anthropic: “Elevated errors affecting the Microsoft 365 connector”
- DuoCircle: “Delivery delays to Microsoft 365 and OLC”
- OpenText: “Zix - MS 365 - Users may be unable to connect to multiple Microsoft 365 services”
- Unipile: “Microsoft Outlook outage”
- Cronofy: “Microsoft 365 elevated error rates”
- Muck Rack: “Microsoft: Microsoft Outlook (and other MSFT tools) appear to be down”
- Greenhouse: “Outlook calendar integrations for scheduling experiencing 10-15% error rates”
- GoDaddy: “Microsoft Office 365 Email Outage”
- TeamDynamix: “Work Management Email Draining and Outbound Email Issue”
- Granola: “Microsoft sign-in and calendar sync outage”
- Shipfix: “Microsoft has an on-going incident and it affects Shipfix service”
- Abnormal: “Email Delivery, Detection, and Remediation Disruption for Microsoft 365 Customers”
- Magna5: “Microsoft Service Disruption”
- IDEXX: “Outage Notification - Some Microsoft Services including Outlook and Teams are having functionality or outage issues”
- Welocalize: “Microsoft outage email”
- Emapta: “Microsoft 365 Service Degradation”
- : TonicDM: “Microsoft 365 / Outlook Service Outage – TonicDM Add-in Impacted”
- Ashby: “Microsoft outage delaying M365 calendar and email sync”
- Nylas: “[US/EU] Elevated API Errors, Send Failures and Delayed Webhooks for Microsoft Grants”
- Read AI: “Microsoft is experiencing an outage that is impacting Read AI's ability to discover new calendar events”
- LeanData: “Microsoft Incident - Degraded performance for BookIt customers using Microsoft calendars”
- Gomomentus: “Micorsoft M365 Issues”
- Opswat: “MetaDefender for Microsoft 365 - India, US, and EU Outage”
- Worldpay: “INC0726074 - We are aware of potential issues with a third-party which may affect the ability to send or receive emails via MS Exchange/Outlook.”
- UIPath: “Multiple Regions - Integration Service - Delayed triggers”
- Daloopa: “Degraded Experience with Excel Add-in and Scout”
- Hiver: “MS Outlook service disruption impacting Hiver Omni”
- Exclaimer: “Delayed email delivery to Microsoft 365 (Outlook) recipients”
- Kaseya: “Multiple Products - Microsoft 365 Connection Issues”
- Reclaim: “Microsoft Outlook API is down”
- Composio: “Outlook toolkit degraded (upstream Microsoft outage)”
- Cal.com: “Degraded Outlook Calendar and Microsoft Teams integrations due to Microsoft outage”
- Phenom: “Potential performance degradation with Phenom Scheduling Services due to Microsoft Exchange Incident”
- Barracuda: “Microsoft Outage Affecting Barracuda Products in All Regions”
- Pylon: “Microsoft outage - Outlook, Teams”
- Superhuman: “Degraded Service for Outlook Users”
- Gong: “Microsoft Teams calls & outlook is currently affected by a service disruption at Microsoft”
- Zoom: “Service Degradation Affecting Microsoft Integrations due to an underlying vendor issue.”
- Resend: “Microsoft 365 Incident”
- Apptegy: “Microsoft 365 - Service Degradation”
- F5: “F5 Distributed Cloud - Service Degradation - degradation ingesting and communicating emails - INC-20261112-547”
- Lever: “Microsoft 365 outage affecting email/calendar sync and interview scheduling”
- CallTower: “Microsoft Exhcange Outage”
- Hoxhunt: “Microsoft outage affecting Hoxhunt services”
- Vitally: “Delayed Outlook and Gmail email and calendar sync”
- Redcanary: “Microsoft Outage (Office 365)”
- SparkPost: “Microsoft outage: delays delivering to Outlook, Hotmail and Office 365”
- Notion: “Issues with outlook connections”
- Broadcom: “Microsoft Office 365 Connection Issues”
- Scaleway: “[Transactional Email] - world - Delayed email delivery to Microsoft domains (Outlook/Hotmail)”
- Entersekt: “Service Incident: Microsoft 365 Outage Impacting Support Emails & 3DS Email OTP”
- 6Sense: “AI Email Assistant Degraded Due to Microsoft Outlook Service Disruption”
- Workable: “Microsoft 365 disruption affecting email, calendars and performance”
- Fellow.app: “Microsoft 365 Calendar Sync Degraded”
Microsoft 365's own status, shown on their pages
Parts on these companies' status pages that carry Microsoft 365's status, showing it in trouble. They repeat Microsoft 365 rather than report in their own words.
- GoDaddy: “Email & Productivity / Professional Email with Microsoft 365: major outage”
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Caught as it happened, by reading companies' status pages. Status pages say what each company chose to post; a company not listed may have had the same trouble and said nothing.