Title: Multiple credential prompts in the Outlook client
ID: EX212047
Status
Service Degradation
Details
Title: Multiple credential prompts in the Outlook client
User impact: Users may receive repeated credential prompts within the Outlook client.
More info: While we're focused on remediation, users that have access to other protocols such as Outlook on the web or mobile devices can access their email without issue. Additionally, customers who are able to use Modern Authentication may enable it to mitigate impact for affected users. Details on how to enable Modern Authentication can be found here: https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/enable-or-disable-modern-authentication-in-exchange-online Current status: We've determined that a recent Exchange Online update contains a code issue which is resulting in repeated credential prompts. We've halted deployment of the build to prevent further spread of impact and we're discussing mitigation steps for this event. We've confirmed that this issue appears to only affect basic authentication configuration users.
Scope of impact: This issue may affect any user that has service-based search or Focused Inbox. Additionally, this issue only affects users that are attempting to connect via basic authentication.
Preliminary root cause: A recent update to the Exchange Online service contains a code issue that is causing repeated credential prompts for basic authentication users.
Next update by: Thursday, May 7, 2020, at 3:30 AM UTC
Thank you,
The Microsoft team
To customize what’s included in this email, who gets it, or to unsubscribe, set your Service health preferences. If you are receiving this email because your Admin added you as a recipient, please contact your Admin to unsubscribe.
Microsoft respects your privacy. Review our online Privacy Statement.