Exam TPAD01 Topic 2 Question 33 Discussion

The correct answer is A. To ensure outbound emails are free from malware and spam . Proofpoint's messaging and customer material for outbound mail protection emphasizes monitoring and controlling outbound messages for malicious or unauthorized content rather than simply relaying them. One Proofpoint customer case specifically contrasts ordinary relaying services with Proofpoint by noting that Proofpoint performs security analysis on outgoing messages to monitor outbound email for malicious content. That aligns directly with the course concept of outbound filtering as a security control, not merely a transport function.
The other answer choices describe separate functions. Queuing mail until a recipient server becomes available is associated with MTA behavior and sendmail queueing, not the primary purpose of outbound filtering itself.
Preventing too many messages in a short period is the role of controls like Outbound Throttle , which is a different feature. Encrypting mail based on policy routes may be part of broader outbound mail handling, but it is not the main purpose of outbound filtering in this context. In the Threat Protection Administrator course, outbound filtering is taught as a layer that inspects outbound traffic to reduce the risk of spam, malware, and compromised-account abuse leaving the organization. Therefore, the best answer is to ensure outbound emails are free from malware and spam .