This document discusses using third party email service providers for email marketing campaigns in SalesLogix. It provides tips for segmenting email lists, writing relevant content, optimizing subject lines and calls to action, testing different elements of campaigns, and using metrics to improve future campaigns. Metrics like open and click rates are important to track to understand campaign performance and which contacts are most engaged. Email campaigns can become the foundation for updating contact information in SalesLogix based on user behavior and interests.