A company uses Exchange Online. The company configures an SMTP relay device. Users report that emails are being delivered to the Junk Email folder. You need to ensure that emails are delivered to the recipient’s inbox. What should you do?
A. Configure a DNS MX record for the SMTP relay device IP address.
B. Configure a DNS A record for the SMTP relay device IP address.
C. Add the IP address of the SMTP relay device to the SPF record.
D. Add a mail flow connector to allow emails from the SMTP relay device IP address.
