Select Logs from the drop-down list at the top of the Search Parameters sidebar to view search options. The log search allows you to search for records of past messages. The mail and message logs maintain data about how the mail transfer agent (MTA) and PureMessage have dealt with specific messages, providing a means for evaluating the effectiveness of the current mail-filtering policy. Messages listed in the logs can be searched and examined. For example, you might search and analyze the logs for the following reasons: