When setting up an on-premises environment, which statement is true about the passthru
server?

A.
The passthru server handles the transfer of network packets and performs mail-routing
and replication with IBM SmartCloud Notes servers.

B.
The passthru server is outside the corporate DMZ.

C.
The server ID for the passthru server must be registered with a unique OU-level certifier,
separate from the OU-level certifier that is used to register the hub/mail server.

D.
The passthru server handles inbound connections from the SmartCloud Notes directory
sync and mail hub servers.