Best email list performance metrics tactics tools in 2025

📬 Email campaign performance 📧 Email list analysis 📧 Email list analysis tactics 📧 Email list cleaning best practices 📧 Email list compliance best practices 📧 Email list compliance tactics 📧 Email list growth strategies tactics 📧 Email list insights tactics 📧 Email list metrics best practices 📧 Email list monitoring best practices 📧 Email list monitoring tactics 📧 Email list optimization tactics 📧 Email list performance improvement 📧 Email list verification best practices tactics 📧 Mailing list management