NSE 6 – FortiMail 6.4 — Question 25

A FortiMail administrator is investigating a sudden increase in DSNs being delivered to the protected domain for undeliverable email messages. After searching the logs, the administrator identifies that the DSNs were not generated as a result of any outbound email sent from the protected domain.
Which FortiMail antispam technique can the administrator use to prevent this scenario?

Answer options

• A. Bounce address tag validation
• B. FortiGuard IP Reputation
• C. Spam outbreak protection
• D. Spoofed header detection

Correct answer: C

Explanation

The correct answer is C, as Spam outbreak protection is designed to detect and mitigate sudden spikes in spam, including undeliverable emails. Options A, B, and D address specific issues like validating bounce addresses, assessing IP reputation, and detecting spoofed headers, which do not directly tackle the problem of receiving excessive DSNs for undeliverable messages.