You need a strong email list to grow affiliate income. You should offer valuable lead magnets to attract subscribers. You must focus on building trust with your audience. You should send emails with clear and helpful content. You must recommend products that solve real problems. You can use engaging subject lines to increase open rates. You need to track your results and refine your strategy. You should segment your list to send personalized offers. You must avoid spamming your subscribers with too many emails. You should focus on creating value in every message. You will see growth with consistency.