What configuration change needed to address this issue?

An engineer is testing mail flow on a new Cisco ESA and notices that messages for domain abc.com are stuck in the delivery queue. Upon further investigation, the engineer notices that the messages pending delivery are destined for 192.168.1.11, when they should instead be routed to 192.168.1.10.

What configuration change needed to address this issue?
A . Add an address list for domain abc.com.
B . Modify Destination Controls entry for the domain abc.com.
C . Modify the SMTP route for the domain and change the IP address to 192.168.1.10.
D . Modify the Routing Tables and add a route for IP address to 192.168.1.10.

Answer: C

Explanation:

Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118136-qanda-esa-00.html