Liam is interested in learning more about his customers’ behavior during the analysis of his recent campaign where he added a lot more copy and images than he used to. He wants specifically to see how people are interacting with the email content. What tool would help him most?

A Click Map is the most effective tool for Liam because it visually displays where recipients clicked within his email. This allows him to see which specific content (text, images, or links) garnered the most engagement, directly addressing his goal of understanding how people interact with the email content. Sender Reputation measures the trustworthiness of his sending IP and domain, not in-email engagement. Omnivore is Mailchimp's automated abuse prevention system, unrelated to content interaction. Subject Line Preview shows how the subject line appears in different inboxes, not how recipients engage with the email's body content.