Best email list metrics tactics tools in 2025

📧 Clean mailing lists 📧 Email list analysis best practices 📧 Email list cleaning best practices 📧 Email list compliance best practices 📧 Email list insights best practices 📧 Email list management best practices 📧 Email list optimization strategies 📧 Email list performance 📧 Email list performance improvement 📧 Email list reporting best practices 📧 Email list security best practices 📧 Email list segmentation strategies 📧 Email list tracking best practices 🛠️ Integrate marketing tools 📉 Monitor email deliverability