Microsoft/Office 365 Can't access email Investigating
Priority - High Affecting System - Exchange Online

User Impact
 
Users may be unable to connect to the Exchange Online service when using the Outlook client.

Current status
 
We're reviewing service monitoring telemetry to isolate the source of the issue and establish a fix.

Scope of impact
 
Impact is specific to users who are served through the affected infrastructure in Great Britain.
 
Updates to follow

Outlook Searching Error Reported
Priority - Low Affecting Other - Outlook/Non SMS

Microsoft is currently working on an issue which is effecting searching in Outlook, users are seeing the following error below when performing a search

"It looks like there's a problem with your internet connection, let's look on your computer instead"

Searching does seem to work fine via Webmail

We have no ETA on when Microsoft will resolve this issue but they have provided us with the following update

Status:

Service degradation

User impact:

Users may experience search failures in the Outlook desktop client.

Latest message:

Title: Many users will see searches failing in the Outlook desktop client User Impact: Users may experience search failures in the Outlook desktop client.

More info: 

Users' searches will default to a local search, they will be unable to search the Exchange Online service. This issue is only affecting on-premises users using non-Modern authentication. Users who have access to Outlook on the web may be able to use that protocol as an alternative method to search the service.

Current status:

We've determined that an issue in the authentication process is misrouting search requests, causing some requests to fail. We're developing a fix and will run it in our test environment to ensure it doesn't cause any further issues. Once we've validated in our test environment, we'll begin the deployment to the affected infrastructure.

Scope of impact:

This issue may potentially affect any of your users attempting to search in their Outlook desktop clients.

Root cause:

An issue in the authentication process is misrouting search requests, causing some requests to fail.