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bizarre Outlook / Office 365 email problem
Hello all. I am working with a client that has a very strange email problem. Client is running Windows 10 Pro, Office 2016 (365). The user in question has a problem where any email receiv...
You can use MFCMAPI to check for hidden rules, here's an example article: https://blogs.msdn.microsoft.com/hkong/2015/02/27/how-to-delete-corrupted-hidden-inbox-rules-from-a-mailbox-using-mfcmapi/
You can also enable auditing (including owner) and check if there are any entries for those messages.