Check an email address
Paste a work email. You will get one of three answers, including the one most tools hide.
What the answers mean
The glossary explains why a checker cannot always give a yes or no. Email verification, Catch-all domain, Bounce rate.
This is one check. The product does lists.
Describe who you want, see how many match, and get verified emails for all of them.
Try it on your own ICP