How to check which Exchange Online Inbox Rule moved email to folder

Joachim Denk 0 Reputation points
2024-04-17T12:13:41.88+00:00

Hello,

Problem: Sometimes mails are moved to a folder, but there is no inbox rule which seems to do that.

Additional Infos: We are using 100% Exchange Online with Outlook Web, and NOT a locally installed Outlook App, which could have an own rule set. So the inbox rule must come from EXO. In the EXO message trace of the moved email, I can see the following status: “The message was delivered to the recipient's mailbox. Because of an Inbox rule the recipient set up, the message was delivered to the following folder: Folder: xxx”.
I already checked all rules via Powershell incl. hidden rules without any result:

Get-InboxRule -Mailbox xxx -IncludeHidden

Question: How can I investigate, which rule or other process moved the mail somewhere else.

Many thanks for your help
Joachim Denk

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 141.9K Reputation points MVP
    2024-04-17T12:28:25.1166667+00:00

    You may have an orphaned rule

    Start Outlook the /cleanrules switch ( Backup any rules first)

    or

    mfcmapi

    https://learn.microsoft.com/en-us/outlook/troubleshoot/data-files/delete-corrupted-public-folder-rule

    1 person found this answer helpful.

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