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Problem: Google Workspace Calendar Events that Pass Through Microsoft 365

This article applies to: Cornell Google Workspace for Faculty and Staff , Cornell Google Workspace for Students , Microsoft Outlook

Microsoft is investigating an issue where calendar events that begin in Google Workspace Calendar, go to Microsoft 365, and return to Google Workspace may not display properly in Google Calendar. Microsoft 365 calendaring is not affected by this issue.  Specifically, Cornell Google Workspace users may experience spoofing or fraud warning banners, valid calendar-related email going to their spam folder, or in rare cases, senders receiving bounce messages for email with attachments or Calendar events originating from Gmail or Google Workspace environments. The issue in Microsoft 365 is being triggered by .ics files attached to Google Calendar Events.

Microsoft is expanding their testing of the potential fix for this issue to ensure it resolves the problem without introducing new unexpected behaviors.

 

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