# Contact segmentation Segmentation is the process of dividing your contact base into smaller, precisely defined groups of recipients. This allows you to send more relevant and personalized communications, which directly translates into higher engagement and better results for your campaigns. In MessageFlow, we offer two types of segmentation that serve different purposes: 1. **Static Segmentation (Group Operations):** Quick, one-time operations for combining or subtracting existing contact lists. 2. **Dynamic Segments (MessageFlow Segments):** An advanced tool for creating "live" lists of recipients that update automatically based on the rules and contact behaviors you define. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.messageflow.com/contacts/contact-segmentation.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.