This document discusses IBM Notes/Domino activity logging and activity trends. It provides an overview of how to configure activity logging, what types of activities are logged, and how to analyze the log data. It also covers how to use activity trends to view historical trends on user activity, database access, and server load. Examples are given on using the log data to track mail sender IP addresses and database access IP addresses. Tips on troubleshooting large log file sizes and limiting the growth of the activity database are also included.