300-720 · Question #76
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…
The correct answer is C. Modify the SMTP route for the domain and change the IP address to 192.168.1.10. Cisco ESA uses SMTP Routes to override DNS-based mail routing and direct outbound messages for specific domains to defined IP addresses or hostnames. When messages for abc.com are being delivered to the wrong IP (192.168.1.11 instead of 192.168.1.10), the SMTP route entry for…
Question
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?
Options
- AAdd an address list for domain abc.com.
- BModify Destination Controls entry for the domain abc.com.
- CModify the SMTP route for the domain and change the IP address to 192.168.1.10.
- DModify the Routing Tables and add a route for IP address to 192.168.1.10.
How the community answered
(30 responses)- A3% (1)
- B3% (1)
- C80% (24)
- D13% (4)
Explanation
Cisco ESA uses SMTP Routes to override DNS-based mail routing and direct outbound messages for specific domains to defined IP addresses or hostnames. When messages for abc.com are being delivered to the wrong IP (192.168.1.11 instead of 192.168.1.10), the SMTP route entry for abc.com must be modified to correct the destination IP. SMTP Routes take precedence over standard DNS MX lookups, so correcting this entry directly resolves the misdirected delivery. Adding an address list, modifying Destination Controls, or editing the OS routing table would not fix an incorrect SMTP relay destination.
Topics
Community Discussion
No community discussion yet for this question.