What should you do?

You have a Microsoft Exchange Online tenant named contoso.com.

Several users report that email messages sent to the users at another company named fabrikam.com contain a Winmail.dat attachment.

You need to prevent the fabrikam.com users from receiving Winmail.dat attachments.

What should you do?
A . Configure a remote domain that has the TNEFEnabled parameter set to $False.
B . Create an Outbound connector that has the validationRecipients parameter set to contoso.com.
C . Create an Outbound connector that has the validationRecipients parameter set to fabrikam.com.
D . Configure a remote domain that has the TrustedMailoutboundEnabled parameter set to $False.

Answer: A

Explanation:

References: https://gcits.com/knowledge-base/how-to-fix-the-winmail-dat-attachment-issue/