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Result Tear down Glossary
Every email address you verify will have a clear and transparent result to understand the verification status. Here’s what each terminology used in your email verification report:

Verification Status


After the successful email verification, every email address is primarily categorized as either Valid, Invalid , Catch-All or Unknown.

ValidVerified as a real email addressYes
InvalidVerified as not validNo
Catch-All Accepts all mails Not Recommended
UnknownUnable to determineNo

Valid


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


Invalid


An invalid email address has been verified as a bad recipient address that does not exist or is not accepting mail. Invalid emails will result in a bounce.

Unknown


Clearout will return an unknown result when it was unable to get a response from the recipient's mail server. This often happens if the destination mail server is too slow or temporarily unavailable due to an issue with their internal network or expired domain names. In certain cases, retrying your request after some time will return a valid or invalid response.

Status Reasons


Apart from the email verification results mentioned above, the report generated will contain the status reasons for the given status results. The definition of each status reason is explained below.

Domain not found This email address is valid in syntax, but the domain doesn't have any records in DNS or have incomplete DNS Records.
Error occurredThis email address belongs to a mail server that is returning a temporary error.
High-risk domainThis email address is valid in syntax, but the domain IP is blacklisted by multiple DNSBL servers.
Medium risk domainsThis email address is valid in syntax, but the domain IP is blacklisted by DNSBL server
Low-risk domain'sThis emails address is valid in syntax, but the domain IP is blacklisted.
Mail server errorThis email address belongs to a mail server that is returning a temporary error.
Mailbox not found This email address is valid in syntax but does not exist.
Mailbox quota exceededThis email address exceeded the space quota and are not accepting any emails.
Not a mail serverThis email address doesn’t belong to a mail server.
SuccessThis email address is valid and safe to send emails.
Syntax errorThis email address is a commonly misspelled popular domain according to RFC standards.
Unable to determineThis email address is not responding at the particular moment so can you can retry later an hour or so.

Associated Results


Delivery Score


Clearout provides a delivery score for every address after the successful email verification to determine the address is safe to send emails or not. Higher the delivery scores then the email engagement will be higher with lower the bounce rate.

Understand the delivery score for every email address in your list:

1Highly deliverable mail address Clean Domain
0.75Low-risk email address Domain Blacklisted
0.5Medium risk email address Domain Blacklisted
0.25High-risk email address Domain Blacklisted

Greylist Count


Clearout provides the greylist count for every address after the successful email verification to check whether the email address is a honeypot or not. Sending emails to addresses with a higher greylist count will increase the bounce rate so it is highly recommended not to send emails to "Greylisted Email Addresses".

Disposable Email Address


Clearout checks if the email address belongs to a temporary account created for a short period of time, like a few hours to a few days. Generally, disposable emails are created to receive initial account activation or confirmation emails for sites like discussion forums, e-shopping etc. Sending emails to such addresses increases the bounce rate so it is highly recommended not to send emails to "Disposable Email Addresses".

Free Email Address


Clearout identifies the email addresses that are using free services such as Gmail and Yahoo! Mail. In many cases, it is perfectly acceptable to send email to a user of a free email service. However, in certain contexts, businesses can receive better open/response rates when only sending to non-free email addresses.

Role-based Email Address


Clearout identifies the email addresses that are typically associated with a role (postmaster, support, sales, etc.) instead of a person. In some instances, mailing to a role address can lead to a decreased open rate and is generally advised against while sending an email.

Autosuggestion


Clearout provides autosuggestion feature which checks in real-time if there is a typo. The autosuggestion will pose an alternative email address when Clearout notices a potentially mistyped address. For instance, if a user types the email address as "[email protected]", Clearout will suggest the corrected spelling [email protected]

Verification Timestamp


Clearout provides the verified time for every email address to ensure the freshness of your list.

Verification Time Taken


Clearout provides the response time taken for every email address by a simple open relay check.