This document provides instructions for using Netcore, a tool for sending mass emails. It describes how to create a list name, upload contacts from a CSV file by mapping fields, create a new campaign by inputting details and HTML content, publish the campaign to send emails, and view reports on email delivery, opens, clicks, bounces and unsubscribes. The document is intended to guide users through the full process of setting up and sending an email campaign using Netcore's features.