Email Verification is the process of checking email addresses for validity before using them in CRM campaigns. This prevents sending messages to fake, inactive, or incorrectly formatted email addresses, improving email deliverability and engagement rates. Verification tools like ZeroBounce and NeverBounce detect invalid, spam trap, and disposable emails. Businesses use email verification to reduce bounce rates, protect sender reputation, and optimize email marketing effectiveness. Implementing verification ensures that CRM databases contain high-quality, actionable contact information.