An organization's MX record points to an inbound mail gateway $($gateway$1)$ that must relay all messages through a second gateway $($gateway$2)$ before sending messages to Gmail. What are the two Google recommended settings in this architecture?

Select $2$ Correct Responses

Add IPs for both gateway$1$ and gateway$2$ to the Inbound gateway setting.

Check "Automatically detect external IP$"$ in the Inbound gateway configuration.

Add the IP address for gateway$1$ to the Inbound gateway setting.

Add IP addresses for both gateway$1$ and gateway$2$ to the email whitelist.

Ensure that all inbound messages receive a custom header to bypass Google spam checks