1Not an email.No
2Spam-trap by ESPs.No
3A Disposable address.No
4A catch-all account.Maybe
5Verified as real address.Yes
6Verified as invalid (Bounce).No
7The server cannot be reached.Maybe
8General accounts for info, support, etc.Yes

Not an email

ExampleWhat makes it invalid
@sample.comThe recipient name is missing.
johnsample.comThe @ symbol is missing between john and
[email protected]The domain name is missing after the @ symbol and before the .com
[email protected]The .com or .net or .org etc… is missing.


A spam-trap is a honeypot used to collect spam.

Disposable – don’t send

Disposable emails are fake accounts used to avoid using a real account.

Accept-All – safe

It’s a catch-all address is used to ensure a company receives any email that has been sent to them, regardless of typos. Example [email protected] is correct by if typed as [email protected] it will get there, but its unknown who if anyone will ever see it.

Valid – safe

A valid email address has been verified as a real email that is currently accepting mail.

Invalid – don’t send

Its verified as a bad recipient address that does not exist or is not accepting mail. Invalid emails will result in a bounce.

Unknown safe

This email appears to be OK, however the domain and/or server is not responding to our requests. This may be due to an issue with their network or expired domain names. Unknown addresses are checked 3 times before the result code is given.

Role – safe

This email is a role-based email address ([email protected][email protected][email protected][email protected]) and is not associated with a particular person, but rather with a company, department, position or group of recipients