Microsoft 365 and Outlook were down for many – here's what went wrong

Microsoft experienced a major outage on January 22 that affected Outlook, Teams, 365 and more. Here's what happened.

Microsoft outage now 'resolved' — latest updates as 365, Outlook and Teams return

Microsoft experienced a major outage that saw multiple services go down, including Outlook, Teams and 365. Here are the ...
TWCN Tech News

Microsoft Outlook cannot sign or encrypt this message [Fix]

While sending an email through the Outlook desktop app, if you see an error message saying Microsoft Outlook cannot sign or encrypt this message because there are no ...

What is Microsoft 365 451 4.3.2 Temporary server error and how to fix it? Here's if mobile, desktop, Windows, macOS, iOS and Android users are facing issues

What is Microsoft 365 451 4.3.2 Temporary Server Error and how to fix it? Microsoft 365 faced outages affecting Outlook, ...
Ars Technica

How do I get rid of this Outlook error message?

Maybe try setting Outlook Express as the defauly and then switching it back. If that doesn't work I would probably just reinstall Outlook.
TWCN Tech News

The operation cannot be performed because the message has been changed Outlook error

Microsoft Outlook is one of the popular email clients that is used by a lot of people worldwide for sending and receiving emails. Like Gmail, Outlook also has a feature to move specific emails to ...