Email verification tools assist you in cutting email bounce rates by detecting spam email accounts and removing inactive email addresses from your list. The vest email verification tools only keep legitimate email addresses on your email list in order to reach active readers and avoid spam. To reduce the bounce rate, email validation tools perform the following checks: Email address and syntax check Check for spam trap Disposable email address check Role-based account check Blackhole (RBL) to the blocklist Domain/mx records check Final verification