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Asutosh's avatar
Asutosh
Copper Contributor
Dec 02, 2025

How to apply sensitivity labels to external emails received in my Outlook?

I have created a sensitivity label and an auto-labeling policy that applies the label when an email contains sensitive information. When an internal user sends the email, the label is applied correctly. But when I receive an email with sensitive information from an external user, the label is not applied. How can I apply the sensitivity label to emails that come from external users?

1 Reply

  • Moetaz_Rabai's avatar
    Moetaz_Rabai
    Copper Contributor

    Hello Asutosh, 

    The reason your label is applied to outgoing email but not to incoming email from external users is due to the limitation of Label Settings in Microsoft Purview.

    Label settings : only work client side in office apps. They cannot automatically labeling incoming emails. Auto-labelling policies : applied service-side and can label incoming emails.

    To fix it : You have to create an auto-labeling policy in Purview not just configure Label settings.

    Source : according to the microsoft learn documentation, automatic labelling doesn't work on incoming email when only label settings configured If this helped a like would be appreciated.

    Best regards,

    Moetaz RABAI

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