Securing Email with Cisco Email Security Appliance (SESA) — Question 1

Email encryption is configured on a Cisco ESA that uses CRES.
Which action is taken on a message when CRES is unavailable?

Answer options

• A. It is requeued.
• B. It is sent in clear text.
• C. It is dropped and an error message is sent to the sender.
• D. It is encrypted by a Cisco encryption appliance.

Correct answer: B

Explanation

When CRES is unavailable, the message is sent in clear text because the system cannot apply encryption. Requeuing the message or dropping it with an error would not allow it to be sent, and using a Cisco encryption appliance would not occur as it is specifically a CRES function that is not accessible in this scenario.