Microsoft has said it is reverting a recent update to test whether the rollback will resolve the issue.

This is not the first outage for Outlook; a January incident is cited to illustrate ongoing reliability challenges.

Outlook.com is experiencing an outage with intermittent sign-in failures and frequent sign-outs, and users are seeing too many requests errors.

DownDetector and other outage trackers show thousands of user reports, indicating widespread disruption across the service.

Microsoft has acknowledged the issue and says engineers are actively restoring services, with investigations into the root cause and ongoing updates expected.

The situation is developing, with context pointing to recurring reliability concerns in prior outages.

Initial status messages were vague, but the company later issued a more confident update as the incident evolved.

The outage is framed as ongoing, with live updates promised as the situation develops.

The incident is described as service degradation rather than a full shutdown, indicating noticeable user impact.

Not all Microsoft services are down; the focus remains on Outlook and related email services, with partial impact.

Status can be checked via the Microsoft Service Status page, Downdetector, and official Microsoft social channels.

Users are advised to monitor the Service Health page, avoid mass password attempts, and use Outlook on the web for critical emails if possible.