Which statement is true about the passthru server?

A.
The passthru server should be registered with its own Organizational-certifier ID for
security purposes.

B.
The service does not support the use of IBM Lotus Domino clustering for passthru server
failover.

C.
An administrator can only use one passthru server in an on-premises environment.

D.
The passthru server should be on the internal network.