A message can be held as a result of a Policy. Which Policy cannot apply the HOLD action?

The X-Attachment Management policy primarily focuses on managing and controlling the types of attachments that can be sent or received in emails. Its main actions include blocking specific file types or restricting attachments based on defined parameters. Since the purpose of this policy is to prevent potentially harmful attachments from being transmitted, it does not have a HOLD action available for messages.

On the other hand, the Blocked Senders policy is designed to prevent any emails from specified senders from reaching the inbox, and it can hold messages from these senders if needed. The X-Content Examination policy analyzes the content of messages for malicious or unwanted content, enabling options like holding messages for further review. Similarly, the Spam Scanning policy identifies and processes spam emails, allowing for various actions including holding these messages for inspection before delivery.

Thus, the nature of the X-Attachment Management policy means it doesn’t have the capability to apply a HOLD action, distinguishing it from the other policies listed that do have provisions for this action.