How to exclude incoming emails in Purview DLP on Exchang Online?

Ng Yin Fai 20 Reputation points
2025-01-22T15:33:52.7166667+00:00

Hi all,

We are exploring the Purview DLP policy to detect some keywords on Exchange Online only.

However we discovered from our tests, both incoming and outgoing emails that contains the keywords are being detected and alerts were created.

Is it the default behavior where both incoming and outgoing emails being scanned by DLP?

If yes, how to exclude incoming emails in Purview DLP on Exchange Online to ensure only outgoing emails are scanned??

Microsoft Purview
Microsoft Purview
A Microsoft data governance service that helps manage and govern on-premises, multicloud, and software-as-a-service data. Previously known as Azure Purview.
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