Vote for LK Log Scan for Microsoft Exchange Server
LK Log Scan for Microsoft Exchange Server is designed to scan through log files created by Microsoft Exchange Server 5.x, 2000, or 2003 to gather data and create a report summarizing e-mail usage. It works very well at pointing out e-mail abuse on corporate networks. The new Enterprise version includes the added ability to scan more than one server and to output data to a CSV text file for later import and manipulation in any number of third party applications.