If an email is incorrectly filtered as spam, what should an administrator do first when reviewing the filter logs?

When an email is incorrectly filtered (a false positive), the administrator's first diagnostic step within the logs is to determine the root cause. The Proofpoint filter logs provide detailed information about how a message was processed, including the specific module (e.g., Spam, Virus, Content) and the exact rule that triggered the filtering action (such as quarantining). Identifying this rule is essential for understanding why the decision was made and for determining the appropriate corrective action, such as creating a policy exception or adjusting the rule's sensitivity.

A. Reclassifying the email manually is a remediation step to correct the single instance, not the first step in diagnosing the underlying cause from the logs.

C. Restarting the Proofpoint server is an unnecessary and drastic action for a single filtering error and would not resolve the misconfiguration causing it.

D. Deleting the email from the quarantine would prevent the user from receiving it and hinder any further analysis of the false positive.

1. Proofpoint Protection Server 8.18 Administrator Guide: In the chapter "Using Smart Search to Track Messages

" the process for investigating a message is detailed. The guide explains that administrators can view "Log Entries" for a specific message

which shows the "modules that fired on the message" and the resulting "disposition." This directly supports that the first step in analysis is identifying the triggering component. (Reference Section: "Using Smart Search to Track Messages" -> "Viewing Message Details").

2. Proofpoint on Demand (PoD) Administrator's Guide: The section on "Message Tracing" describes how to use the tool to find messages and analyze their delivery status. When reviewing a quarantined message

the details explicitly show which filter (e.g.

Spam

Policy Rule) was responsible for the action. The guide states

"The results provide information about what happened to the message...including which policy routes and rules were triggered." This confirms that identifying the rule is the primary investigative action. (Reference Section: "Message Tracing and Logs").