What should you do?

You have a Microsoft 365 subscription that uses a default domain named contoso.com.

Users report that email messages from a domain named fabrikam.com are identified as spam even though the messages are legitimate.

You need to prevent messages from fabrikam.com from being identified as spam.

What should you do?
A . Enable the Zero-hour auto purge (ZAP) email protection feature.
B . Enable the safe list on a connection filter.
C . Edit the default mail flow rule to bypass the spam filter.
D . Modify the IP Allow list of a connection filter policy.

Answer: D

Explanation:

Reference: https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/configure-the-connection-filter-policy?view=o365-worldwide