Microsoft Outlook Performance Issue – Attachment Downloads

We're continuing to monitor the fix as it deploys to all affected environments, which is taking longer than initially anticipated. We'll aim to provide a estimated timeline for the fix to finish deployment by our next update.


Update - Issue Continues

Microsoft determined that a recent update intended to improve the reliability of Outlook on the web contained an issue that is causing users to be unable to download attachments. Microsoft is still developing a fix to remediate the impact and suggests users use the Outlook desktop app or try logging out and back in to Outlook on the web.  
We apologize for the inconvenience. Microsoft to provide an update April 11, at 5 p.m., and the ITS Service Status & Notification webpage will be updated during regular business hours.