The only thing mailcheck doesn't do is check if the domain has MX records, so valid looking domains that you'll never be able to send anything to will pass. I'

The only thing mailcheck doesn't do is check if the domain has MX records, so valid looking domains that you'll never be able to send anything to will pass. I've tried to help this situation by creating an API for you guys: https://www.emailitin.com/email_validator https://www.emailitin.com/email_validator