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Global failure hits Microsoft 365, Outlook and Teams this Thursday

Microsoft 365
Microsoft 365 - T. Schneider/shutterstock.com

Users from several countries reported problems accessing Microsoft services this Thursday, January 22, 2026. The instability began around 11:40 am Pacífico time, mainly affecting Microsoft 365, Outlook and Teams. Relatos indicate difficulties in sending and receiving emails, in addition to failures in logging into corporate applications.

The company confirmed that it is investigating an infrastructure issue that impacts load balancing. Esse incident follows a brief outage recorded the previous day, January 21st. Milhares of notifications appeared on crash monitoring platforms.

The peak of reports occurred in the hours following the start of the problem, with an impact on regions of América, Norte, Europa and Ásia. Empresas dependent on these tools faced interruptions in remote work routines and internal communication.

Services affected by the incident

Outlook recorded the highest volume of complaints, with users unable to send or receive messages. Problemas included temporary server errors and external connection rejections.

Microsoft Teams had flaws in accessing meetings and chats, limiting real-time collaboration. Alguns reports mentioned difficulties loading shared channels.

The Microsoft 365 package as a whole has experienced outages in the admin center and in applications such as Word and Excel online. Complementary Serviços, such as Microsoft Defender and Purview, were also impacted.

Causes identified by the company

Microsoft attributed the initial problem to a failure in the network infrastructure. Essa issue directly affected load balancing between servers, causing widespread slowdowns.

Company engineers applied mitigation measures to restore part of the functionality. Até late afternoon in American Leste time, the company reported that the main infrastructure had been recovered.

Residual effects persisted in some regions due to the backlog of pending requests. Staff continued to monitor traffic to prevent immediate recurrences.

Microsoft 365 relatos de fallha
Microsoft 365 crash reports – Reprodução/downdetector

Comparison with previous interruption

This Thursday’s incident lasted longer compared to January 21st. On Wednesday, the failure lasted a few hours and mainly affected access to Teams and parts of 365.

Reports on DownDetector indicated a double volume of notifications in the current episode. Usuários highlighted a greater impact on Outlook, which had not been previously affected.

The sequence of problems on consecutive days raised attention about the stability of Microsoft’s cloud services. Empresas adjusted temporary procedures to minimize operational losses.

Reports from users in different regions

Professionals at América of Norte concentrated most of the initial complaints, coinciding with local business hours. Problemas included delays in delivering corporate emails and authentication failures.

At Europa, reports increased as the day progressed in the local time zone. Usuários mentioned disruptions to hybrid workflows.

  • Difficulties in sending emails from external accounts to Microsoft domains;
  • Connection errors on mobile devices with the Outlook application;
  • Slow loading of attachments in pending messages;
  • Intermittent problems accessing the shared calendar on Teams.

Contingency measures adopted

Companies recommend using desktop versions of applications while the cloud presents instability. Essas versions maintain offline functionality for editing documents.

Temporary workarounds include accessing browsers in incognito mode to bypass corrupted caches. Administradores IT staff monitor official updates to apply fixes.

Microsoft recommends periodic checking of the service status page. Lá real-time information about resolution progress is published.

Updates on service restoration

The company announced partial restoration at around 4pm US Leste time. Load balancing has received adjustments to normalize email traffic.

Some users reported a gradual return to sending and receiving messages. The company continued to apply active monitoring to identify remaining points.

Services such as Defender and Purview have returned to normal operations in most regions. Microsoft has committed to providing a detailed report upon full completion of the corrections.

Impact on corporate environments

Organizations dependent on the Microsoft ecosystem experienced reduced productivity during the peak of the failure. Virtual Reuniões needed to be rescheduled or transferred to alternative platforms.

IT departments recorded an increase in the volume of internal calls related to remote access. Equipes support staff instructed employees on waiting procedures.

The outage highlighted the relevance of contingency plans for essential cloud services. Empresas review service level agreements with providers to ensure redundancies.

Continuous monitoring of the situation

Independent platforms such as DownDetector recorded a gradual reduction in reports throughout the afternoon. The incident graph showed a decline after the mitigation announcement by Microsoft.

Users in Asian regions reported later normalization due to time difference. The company maintained open channels for real-time updates.

The situation remained under observation until confirmation of total stability. Profissionais awaits official communications regarding the full root cause.

Summary of Microsoft shares

The company mobilized global teams to diagnose and fix the infrastructure problem. Medidas included traffic redirection and controlled restart of affected components.

Announcements were issued via social media and a dedicated status page. Transparency in updates helped manage user expectations.

Post-incident reporting should include detailed analysis to prevent similar events. Microsoft reinforces ongoing investments in the resilience of your cloud.

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