Outlook Down Since 1 PM ET: What Microsoft Says About the Outage

Outlook users in multiple regions lost access to email through both the web client and mobile apps starting around 1 p.m. ET on Nov. 12, according to The Verge. The outage prompted an acknowledgment from the company's own status channel within the hour, though a full timeline for repair was not given.

What caused the outage?

The disruption was traced to backend infrastructure rather than the Outlook app itself. Posting from its Microsoft 365 Status account, the company said: "We've determined a portion of infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors," as quoted by The Verge. The statement did not specify which regions were hit hardest or what triggered the load spike.

How widespread was the disruption?

Reports of Outlook problems spiked on the outage-tracking site DownDetector just before 1 p.m. ET and had not fully subsided by the time The Verge published its report at 7:07 p.m. UTC, more than six hours after the first wave of complaints. Some users also flagged issues with Microsoft Teams, but most people reporting problems told The Verge that Teams was functioning normally again.

By the numbers

• ~1 p.m. ET: DownDetector reports of Outlook outages began climbing, per The Verge.
• 7:07 p.m. UTC, Nov. 12: The Verge's report was published with the outage still only partially resolved.

Has Outlook service been restored?

In a follow-up update cited by The Verge, the company said: "We've completed redistributing connection traffic across our worldwide infrastructure, and we're moving additional traffic off the affected infrastructure to further reduce load. We're also restarting affected servers to return them to service." The update added that engineers were still determining "whether the elevated traffic reflects a genuine increase in requests or a shift in how traffic is being routed across our infrastructure," leaving the root cause unresolved even as mitigation steps proceeded.

The Verge noted it remained unclear how long full access would take to return or whether the fixes described would resolve every connectivity error users were seeing.

Were other apps affected?

Teams saw scattered complaints during the same window, but affected users told The Verge the collaboration app had largely returned to normal while Outlook access problems persisted. No outage was reported for other Microsoft 365 applications in the source material.

What to watch next

• Whether the company's 365 Status account posts a formal resolution notice and root-cause summary.
• Whether DownDetector reports for Outlook return to baseline levels.
• Whether the traffic-routing investigation the company described turns up a specific cause, such as a genuine demand spike versus a misrouting error.
• Whether the episode prompts a public post-incident report, as is sometimes issued after multi-region cloud disruptions.

This is a developing story, and figures above reflect information available in The Verge's report at the time of publication.