DataGroomr API employs multiple checks to verify email address validity.
- checks email for correct format
- uses machine learning to identify common misspellings
- identifies shared email addresses (like firstname.lastname@example.org)
- checks if email is a temp disposable address (like tempmail.org)
- checks if email domain is valid
- checks SMTP server to make sure address is valid and accepts mail
- uses machine learning to discover alternative emails for invalid emails