- Personalization: Use the data you collect to personalize your emails. Address subscribers by their name and tailor content to their interests. - Testing: Regularly test different segments to see which ones respond best to certain types of content. - Compliance: Ensure you comply with regulations like GDPR and CAN-SPAM by obtaining explicit consent from your subscribers and providing easy options for unsubscribing. - Clean Your List: Periodically remove inactive subscribers to maintain a healthy and engaged email list.