Discovering Email Address

These resources will let find, how the email is created, if is valid, get a bunch of emails from specific domains and more.

• Hunter.io - https://hunter.io/

• Phonebook.cz - https://phonebook.cz/

• Email Hippo - https://www.emailhippo.com/

• Email checker - https://hunter.io/email-verifier

• Email Permutator - http://metricsparrow.com/toolkit/email-permutator/