1. Verified emails that are found and verified on the fly (not from a database).
If you give us a name and website, we form the email and ping the server to confirm its existence. It's not sitting in a database.
That's why the delivery rate is so good. See the accuracy here: https://anymailfinder.com/accuracy/
2. 'Found on web' emails that do exist in a database.
'Found on web' emails are those we found in forums and on websites across the internet to build a database of emails. They are not found live and it won't cover every website but it's still quite extensive.
You can upload a list of websites without names and we'll return whichever 'found on web' emails we have for each website.
The great thing? If we can't verify them then they are free. When you enter in just a website, we'll find emails for it in the database and then see if we can verify them. If we can't, they're free.
3. Pattern matched emails which are best guesses.
When we can't verify it, or find it on the web, we'll see if we can return a pattern matched email.
Pattern matched emails are free and yet they still have a 70%+ delivery rate so people do actively use them. If you want to find out if a pattern matched email is definitely real then install Rapportive.com into gmail and put the email in your To: field to see if rapportive can find a social profile for that email address.
We charge one credit per verified result
It's one credit per verified result regardless of how many emails are returned. Learn more here: http://help.anymailfinder.com/basics/how-do-credits-work