To make newsletters more engaging, focus on creating valuable, relevant content that addresses readers’ interests. Write clear, enticing subject lines that make people want to open the email—avoid generic phrases like 'Our Newsletter' and instead use something specific, like 'Top Tips for Blogging Success.' Personalizing emails, even with just a first-name greeting, can make the message feel more relatable. Try testing different formats, including visuals or interactive elements, and track engagement to understand what resonates most with subscribers.