FIlter Incoming Email base on DMRAC

Question

Hello,

Can we make an rule to filter incoming mail where if the incoming mail no have valid DMARC record the message will be rejected?

Answer 1

Hi @ Handian Sudianto,

If a message fails DMARC inspection, you can specify the action to reject the message for the sender's DMARC policy in the anti-phishing policy.

For more information, please refer to the following link：

Anti-phishing policies | Microsoft Learn

Configure anti-phishing policies in EOP | Microsoft Learn

In addition, mail flow rules can also reject messages that fail DMARC checks, you can refer to the following screenshot settings:

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