What should you do?

You have a DNS zone named contoso.com that contains the following records.

You purchase a Microsoft 365 subscription.

You plan to migrate mailboxes to Microsoft Exchange Online.

You need to configure Sender Policy Framework (SPF) to support Exchange Online.

What should you do?
A . Add an additional TXT record.
B. Modify the TXT record.
C. Modify the expire interval of the SOA record.
D. Modify the default TTL of the SOA record.

View Answer

Answer: B

Explanation:

Reference: https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/set-up-spf-in-office-365-to-help-prevent-spoofing?view=o365-worldwide#next-steps-after-you-set-up-spf-for-office-365