DLP policy to notify users that their email is forwarded to external user

Question

Want to know how i can achieve this. Please share the steps.

1. Create a test label.
2. Create an EXO rule: apply label when the recipient is member of a group.
3. Create DLP policy: if message contains the label >> notify sender with email and policy tip.

Answer 1

Hi @Microsoft Q & A，

Thanks for posting in our Q&A forum.

Regarding of your requirements, I can help you with some steps to achieve your goal.

1. To create a test label, you can use the New-Label cmdlet in PowerShell. For example: New-Label -Name "Test Label" -DisplayName "Test Label" -Description "This is a test label"
2. To create an EXO rule to apply the label when the recipient is a member of a group, you can use the New-TransportRule cmdlet in PowerShell. For example: New-TransportRule -Name "Apply Test Label" -SentToMemberOf "Test Group" -ApplyClassification "Test Label"
3. To create a DLP policy to notify the sender with email and policy tip if the message contains the label, you can follow the instructions: https://learn.microsoft.com/en-us/exchange/security-and-compliance/data-loss-prevention/create-custom-dlp-policy

Hope this can help.

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