Email harvesting is the process of attaining a large number of email addresses through different methods. The purpose of gathering email addresses is for use for spamming or in bulk emailing. The most common way of email gathering is by using specialized harvesting software known as harvesting bots, or harvesters. In this tutorial, we will discuss a tool called “theHarvester,” which comes pre-built in Kali Linux.

This tool is intended to help security analysts in the early stages of penetration testing to understand the user footprint on the Internet. It is likewise noteful for anyone that wants to know what an attacker can see about their organization.

To start the tool type, “theharvester” in your terminal and hit “Enter.”