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Microsoft outage: What's up and what's still down?

By · Published by Everything Blog

In short

Microsoft 365 services, particularly Exchange Online, continued to experience widespread technical disruptions into a second day. The breakdown has left many users unable to access their email via web or desktop applications, while core Teams functions remain operational except for calendar-related features. Several Indian commercial airlines faced operational challenges, though Air India avoided interruptions by temporarily rerouting its communications. Microsoft confirmed that the root cause was several servers unexpectedly becoming unavailable.

Key points

  • Technical teams have completed initial recovery steps in Asia Pacific and are expanding e…: Technical teams have completed initial recovery steps in Asia Pacific and are expanding efforts elsewhere to clear email backlogs.
  • Exchange Online failures disrupted mailbox access and calendar functions, but Microsoft T…: Exchange Online failures disrupted mailbox access and calendar functions, but Microsoft Teams chat and meeting services remained functional.
  • Air India prevented communication breakdowns during the outage by proactively rerouting i…: Air India prevented communication breakdowns during the outage by proactively rerouting its inbound and outbound email traffic.

Sources checked by our analysis pipeline: 1

New Delhi, Microsoft on Friday said it has completed recovery actions across parts of its affected infrastructure in the Asia Pacific region and traffic is being gradually restored, even as its Microsoft 365 services, including Outlook email, remained disrupted for a second day.

The company's service health page continued to show "service degradation" for Microsoft 365 business and enterprise customers and its consumer products as of an update at 4:30 pm IST.

Microsoft said it was seeing improvements in mailbox access and delayed email processing, but some users may continue to experience intermittent issues. Its focus is now on extending the recovery actions to affected infrastructure in other regions and on reducing email queues and backlogs, it said.

"We regret the disruption today's outage has caused for many of our customers. Our global teams continue to work with urgency to resolve the issue," Puneet Chandok, President, Microsoft India and South Asia, said in a post on LinkedIn.

Charles Lamanna, EVP of Copilot, Agents, and Platform at Microsoft, said in a post on X that there was "no indication this is…

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