Title: Users may be unable to open .MSG files that contain specific character codes in the SharePoint Online document library
User impact: Users may be unable to open .MSG files that contain specific character codes in the SharePoint Online document library.
More info: Affected users see the following error message: “Hmm… looks like this file doesn’t have a preview we can show you.”
Users can bypass the issue by downloading and opening affected .MSG files in Outlook.
Current status: We’ve determined an open source component contains an issue that is preventing users from opening .MSG files that contain specific character codes. We’ve reported the open source issue and we’re pursuing a fix.
Scope of impact: This event may impact any users who attempt to open .MSG files that contain specific character codes in the SharePoint Online document library.
Start time: Friday, September 8, 2023, at 8:32 AM UTC
Root cause: An open source component contains an issue that is preventing users from opening .MSG files that contain specific character codes.
Next update by: Monday, October 2, 2023, at 7:00 PM UTC
