A domain named terrace.com.
The administrator@terrace.com sends an e-mail to a non-existed address aaa@terrace.com. NDR will be received. Within an exchange organization, you cannot turn it off. Anyway, why would you do?
How about delivery report?
In outlook, you create a new message with a receiving address jane.liao@terrace.com. Don't send it yet.
After you select "Request a Delivery Receipt", press the SEND button. A delivery report will be received shortly.
==========
Remote Domain options

Remote Domains: Default
Remote Domain: Terrace.COM

At Terrace.COM:

OUTLOOK client program can request a delivery receipt from Terrace.com side. If you want the NDR message to be delivered to terrace.com domain, you select the "Allow non-delivery reports" in VAN.COM organization.
Automatic Reply option is used for out of office assistant in OUTLOOK Client Program, which a automatic reply message can be created as a rule.

At terrace.com, after you set ALLOW AUTOMATIC FORWARD in remote domain. When Kaiming.Liao@terrace.com receives email, it will be automatically forwarded to fact@van.com account.