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Microsoft Outlook Still Not Working? Here's the Latest, Including a Possible Fix
Tyler Graham, Jon Reed · 2026-04-29 · via CNET
  • Tech
  • Online Services
  • Services & Software

The email client suffered sign-on glitches Monday, and some of those problems seem to have continued into Tuesday.

Headshot of Tyler Graham
Headshot of Tyler Graham

Tyler Graham

Headshot of Jon Reed
Headshot of Jon Reed

Jon Reed

A thumb hovers over the Microsoft Outlook logo on a phone.
Thomas Trutschel/Getty Images

If you had trouble logging into your email Monday, you weren't the only one. And some of those problems with Microsoft Outlook seem to have continued into Tuesday, Microsoft reported.

Microsoft Outlook users reported problems signing in to the email client at the start of the week, with reports beginning just before 5 a.m. ET Monday. After several hours of login issues, the company said on its status page around 3:36 p.m. ET Monday that internal logs tied the issue to a recent configuration change and that it rolled back the update. A recent status report said the service appeared to be recovering.

Microsoft said users on iPhones might have to re-enter their passwords in Settings to access Outlook accounts again. 

Some issues persisted into Tuesday. Microsoft said it continued its investigation of the issue and is making changes to the sign-in experience to fix things.

People reporting errors to Downdetector, which, like CNET, is owned by Ziff Davis, said they were having issues with the client's iOS app. Outage reports peaked at about 1,500 early in the day.

Still having trouble Tuesday? What Microsoft says about ongoing problems

By Jon Reed

Reports of login issues didn't stop with Monday afternoon's fix. Microsoft said Tuesday that it was still seeing some users having problems connecting, especially on iOS. 

"We're performing some changes to optimize the outlook.com iOS sign-in experience and, once complete, we'll provide instructions to help users sign back into their accounts," the company's status page said.

The company recommended users who are still struggling to log in try the iOS suggestions it shared Monday (see the posts below) while it works out a long-term solution. 

Still not working? Microsoft says iOS users need to re-enter passwords

By Tyler Graham

If you're still struggling to get Outlook up and running again, you're certainly not alone. As of 5:09 p.m. ET, Downdetector is still reporting more than 1,000 concurrent user errors.

But Microsoft's latest service status update reaffirms that "system telemetry indicates that the service remains healthy." Microsoft has archived the incident with an official start and end time.

Most of the Downdetector reports are likely generated by owners of iOS devices, who will need to take a series of special steps to re-enter their password and login to their Outlook accounts. In the service status update, Microsoft stressed that "iOS users must take additional steps to re-enter their password to successfully access Outlook accounts," indicating that the instructions are mandatory.

A step-by-step walkthrough for affected iOS device owners is included in our previous update, just below this one.

iOS users may need to take additional steps to restore service

By Tyler Graham

Though the Outlook outage may be largely resolved by now, Microsoft said you may need to take additional steps to restore functionality if you're trying to access your email on an iPhone or other iOS-enabled device. According to the latest service status update as of 4:01 p.m. ET, iPhone owners should reenter their passwords to access Outlook.

Microsoft included step-by-step instructions to follow in order to successfully login:

  • Open the Settings app on your iPhone.
  • Scroll down and tap on Mail.
  • Select Accounts under the Mail settings.
  • Tap on the email account for which you need to reenter the password. 
  • Tap on Account Settings or directly on the Password field (depending on your iOS version).
  • Enter the updated or correct password in the Password field.
  • Tap Done to save the changes.
  • Open the Mail app to confirm that the account is syncing properly and emails are being sent/received.

A positive Outlook: Microsoft says its fix is working

By Tyler Graham

It must've been a long day for Microsoft engineers -- but the third time is the charm when it comes to update rollbacks, it seems. According to the latest service status update as of 4:01 p.m. ET, Microsoft confirmed that the completed configuration change rollback seems to be working as intended.

"The roll back of the previously mentioned configuration change is complete and our telemetry indicates service health is recovering," the company's status page reads. "We'll continue to monitor to confirm this fully resolves the issue."

Downdetector is reporting fewer than 1,000 concurrent errors for the first time since the Outlook outage began, which is a pretty good indicator that service is returning to its baseline norm.

Microsoft is trying another fix

By Tyler Graham

Microsoft may have found the true culprit behind today's Outlook login errors, according to the latest status update as of 3:36 p.m. ET.

"After reviewing the logs collected from internal reproductions we've found a pattern of errors that point to a recent backend configuration change that may be causing impact," it reads. "We've completed a roll back of this configuration change. We're now carefully monitoring the environment to determine if it worked as intended or if there are additional steps required for full incident resolution."

No relief: The rollback did not fix the Outlook outage

By Tyler Graham

For a brief moment, it seemed like this ordeal could be coming to an end. In an X post, the Microsoft 365 Status account reported that a planned service update rollback had been completed. In a previous service status update, Microsoft confirmed that it had concluded this update to be the likeliest cause of the login errors Outlook users had been experiencing throughout the day.

Alas, the latest status update as of 2:49 p.m. ET is bad news. Microsoft says the rollback did not resolve the Outlook issue, and that it's still trying to understand the source of the error messages.

"The rollback that was completed does not appear to have provided the intended impact relief," the company's status page reads. "We're continuing to look at internal reproductions of the impact to find potential next steps for mitigation and understand the source of error messages."

Having Copilot struggles? That's an entirely separate issue

By Tyler Graham

It looks like Microsoft's Copilot large-language model is saddled with its own set of woes today, too. The Microsoft 365 Status account posted on X explaining why the company's AI assistant is inaccessible for many people.

"We've determined a portion of our Copilot infrastructure in North America is utilizing a high number of resources, and we're rebalancing traffic to remediate the issue," the post reads. Microsoft 365 admin users can view more information about the Copilot issues on the admin center, using the code "CP1293219."

While Microsoft has identified the cause of the Copilot service degradation, we still don't have a true answer about what is causing the Outlook outage. As the workday marches on, thousands of new reports about Outlook service issues are still being added to Downdetector.

Microsoft is rolling back a service change again

By Tyler Graham

Microsoft is testing a rollback of a recent service update to see if it resolves any of the issues users are experiencing, according to its latest update as of 1:30 p.m. ET.

"We've identified a recent service change that is potentially contributing to user impact," the company's status page says. "We're testing a roll back of this change to determine if this remediates impact. In parallel, we're continuing to investigate the unusual error patterns that were previously observed."

It's more than just going without work email

By Tyler Graham

It's all well and good when the Outlook outage gives you a convenient excuse to miss work emails, but some social media users are discovering that the service degradation is affecting their leisure time.

The newest posts on the r/Outlook subreddit (yes, it exists -- and has 202,000 weekly visitors) capture the mixture of frustration, confusion and anger that arise during online service outages, especially as some people realize that two-factor authentication measures are locking them out of other accounts and applications.

Upon finding out that they were locked out of their Microsoft 365 services, their backup email and even their Xbox account, one user spun up a particularly vitriolic post. If I found out I couldn't even get in some gaming time while being unable to get my work done, I'd probably scrawl some expletives too.

Outages like this one are often cause for folks to scramble for alternative services to resume their normal schedule. One despondent Redditor who claims to have been using the same Hotmail address for more than 20 years is even thinking about adopting a different email. Ouch.

You might be avoiding work emails, but you're not dodging meetings

By Tyler Graham

Outlook is still experiencing service degradation, according to Microsoft's product status page. The latest update indicates that the underlying cause of the "too many requests" error is still under investigation.

But don't think you're off the hook when it comes to getting work done, especially if you have an important meeting coming up. Microsoft's full suite of consumer products is largely unaffected by this service outage -- and that includes Microsoft Teams.

In addition to Microsoft's service page reporting that Teams is fully operational, report density for the chat and videoconferencing app on Downdetector is close to the baseline at the moment.

Still trying to isolate the source

By Jon Reed

Microsoft is still trying to find the cause, according to its latest update at 11:19 a.m. Eastern Time. 

"We're running tests to reproduce impact in our internal environment to obtain additional logging to isolate the source of the unexpected error messages," the company's status page says.

Reverting an update doesn't seem to have helped

By Jon Reed

In its latest update on its status page, Microsoft said reverting a recently introduced update hasn't alleviated the login issues.

"We're continuing to investigate the unexpected increase in error rates affecting two separate error scenarios to identify any potential root cause which may be responsible for this," the update said. "Additionally, we're closely monitoring service telemetry to discover any other potential actions, or mitigation steps."

Microsoft said the errors are affecting but are not limited to iOS users.