Amazing solution for validation of an email list. I've been using Mailcheck.co 3 months, and I'm glad to work with these tools. Their API is noticeable and comfortable to use.
Accidentally appeared in google search, had some doubts initially, and it's 2 months I am using them, quick validation, a decent level of support, using and will keep using their services.
I've been getting a lot of requests for new goods from clients.
For new campaigns, I need to clear the right emails from the wrong, this service handles it and I'm satisfied to work with it.
Great service, installed their API via WordPress on my website, with WooCommerce, pretty fast validation, now I am not afraid of fake users, their service validates all of the emails going through the registration form. Clean - 5 stars!
This tool helps me to solve a lot of issues with wrong email. It validates email list so fast. I've never got bounced mails, yet. Recommend Mailcheck.co