What are some alternatives?
When comparing VERIFIGATOR and Marketing Optimizer, you can also consider the following products
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
ListClean - Get rid of invalid, abuse & spam-trap from your email list.
Marketing 360 - Marketing 360® is a powerful marketing and website platform built for any size brand. It's fully managed and has everything a brand needs to drive beautiful marketing and sales.
DataValidation - Email validation and email verification service integrated with MailChimp, MailUp, HubSpot and Zapier.
EngageBay - EngageBay is an affordable all-in-one marketing, sales CRM and service helpdesk software for growing companies to acquire, engage and nurture web visitors to happy customers.