1. Improved Deliverability: Ensures that your emails reach the intended recipients. 2. Cost Efficiency: Reduces costs associated with sending emails to invalid addresses. 3. Enhanced Engagement: Helps in targeting the right audience, thereby increasing engagement rates. 4. Compliance: Ensures adherence to [GDPR](https://gdpr-info.eu/), [CAN-SPAM](https://www.ftc.gov/tips-advice/business-center/guidance/can-spam-act-compliance-guide-business), and other regulations.