In July 2023 we announced the discontinuation of support for all DLP-related functionality within Exchange Online Ma..., and encouraged admins to finish migrating any remaining DLP-related mail flow rules to Microsoft Purview DLP. In August we stopped supporting mail flow rules (also known as Exchange Transport Rules or ETRs) that are linked to Microsoft Purview DLP policies.
Today, we’re announcing that starting in the middle of November 2023 we’ll stop supporting the following DLP-related mail flow rules conditions and action:
Conditions
Action
Starting in mid-November, the following will occur:
Migration Process
Recreate your DLP-related mail flow rules in Microsoft Purview DLP then please delete those mail flow rules in the EAC. This will make it easier to manage your remaining mail flow rules and free up some of your mail flow rules quota.
Exchange Online Transport Team and Microsoft Purview Data Loss Prevention Team
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