A well-maintained email list is crucial for successful email marketing. Your checklist for list improvement should include:
1. Regular Cleaning: Remove inactive or invalid email addresses. 2. Segmentation: Continually refine your audience segments based on behavior, preferences, and demographics. 3. List Growth Strategies: Implement tactics like [lead magnets](https://optinmonster.com/lead-magnets-ultimate-guide/) and sign-up forms to grow your list organically. 4. Permission: Ensure all subscribers have explicitly opted in to receive your emails. 5. Engagement: Send re-engagement campaigns to inactive subscribers to win them back.