In this chapter, you have learned about user and click tracking, specifically how they operate, and the limitations of each. You've examined user-and click-tracking statistics to determine which users are opening which messages and which links are being clicked. Specifically, you've covered:
Enabling user tracking and viewing statistics about who's reading our messages
Enabling click tracking and viewing statistics about who's clicking on which links in our messages
Examining user/click statistics in greater detail using the "statistics" menu
In the following chapter, we'll be looking at securing your phpList installation, both against common attacks (that is, brute force) and against potential (current and future) vulnerabilities.