You are configuring a custom domain as part of an Office 365 pilot. You want to host some, but not all, pilot user email accounts in Office 365.
Which setting should you configure for the custom domain?

A.
Authoritative

B.
Internal Relay

C.
External Relay

D.
Remote Domain

Explanation:
A)
Incorrect: You must configure the domain as an Internal Relay domain when configuring mail flow for pilot mail users rather than as an Authoritative domain.

B)
Correct: You must configure the domain as an Internal Relay domain when configuring mail flow for pilot mail users.
C)
Incorrect: You must configure the domain as an Internal Relay domain when configuring mail flow for pilot mail users rather than as an External Relay domain.
D)
Incorrect: You must configure the domain as an Internal Relay domain when configuring mail flow for pilot mail users rather than as a Remote domain.