What are some alternatives?
When comparing VERIFIGATOR and DataValidation, you can also consider the following products
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
ListClean - Get rid of invalid, abuse & spam-trap from your email list.
Email Verifier - Email verifier app lets you verify email.
clearout.io - The easiest and real-time email verification and validation tool.
Advanced Email Verifier - List hygiene plays a role in the delivery race.