Resolved: Microsoft 365 Email Delays Last update: Aug 12, 2025, 6:22 PM CDT Microsoft has confirmed a regional issue in Exchange Online today that caused some inbound and outbound emails to be delayed by over an hour. The incident affected a subset of users in North...

Summary Users may be unable to open or preview PDF attachments in the new Outlook desktop experience and Outlook on the web. Symptoms Issue may occur when previewing or downloading the PDF file. Outlook error: “Something went wrong while the document preview was being...