Implementing validation rules can be done through various methods, including:
Manual Checks: Manually verifying email addresses, though time-consuming, can be effective for smaller lists. Built-in Tools: Many email marketing platforms provide built-in validation tools that automatically check email addresses when they are added to your list. Third-party Services: Services like ZeroBounce, NeverBounce, and BriteVerify offer robust email validation solutions that can be integrated into your email marketing strategy.