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Invalids The format of the email address is incorrect. E.g. ab@c@gmail.com
No-replies Meaning that no emails should be sent to these addresses. E.g. noreply@domain.com
Bounces Hard bounces that are caused by email addresses that do not exist.
Bad MX / Domain Email addresses with domains that are not configured properly. These emails will bounce.
Spam-traps Email addresses with the sole purpose to collect spam. Never send to these addresses.
Catch-all Domains that accept any email addresses that are either real or fake, but always return a clean value. This list may contain bounces and clean results.
Suspicious Email addresses that have been rejected or deferred after multiple checks without a confirmed result. Emails marked Suspicious may bounce.
Unknown The mailserver returned an unexpected result and we could not determine the status. Emails marked Unknown may bounce.
Clean This is an email address that exists and is ready to receive mail.



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ListWise is the world's simplest and most accurate email list cleaning solution. ListWise intelligently cleans your list, validating every email, getting rid of duplicates and potential bounces and gives you a clean, fresh list that you can then use for your email marketing efforts.

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