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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.

StatusDescriptionGood to Send?
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.

Catch-all

Certain servers accept all the emails for that domain and never bounces it back to the sender, those email addresses are flagged as catchall emails.

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.

Status ReasonDescription
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.
No Answer Received From Authoritative ServerThis email address belongs to a mail server that is not responding at the time of verification.
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


Email deliverability Guarantee


Email deliverability is the foundation for a successful email marketing program. If you’re not getting emails delivered, you don’t have a proper email marketing program. We at Clearout understand the importance of email deliverability and that's why we adopt best practices for email verification to offer our customers the best possible accuracy in the industry. We back up our verification results with a 97% deliverability rate guarantee. In other words, when you verify your email addresses with Clearout, we guarantee that the bounce rate will not be more than 3% in case of messages sent to “Guaranteed Deliverable” email addresses or the flag Safe-to-Send set as "Yes".

In order to qualify for our guarantee, the following criterias must be met-

  • Email addresses must be classified as guarateed deliverable
  • The email is sent anytime before 24 hours from the verified time
  • Email addresses must have been acquired by Opt-in process only. Email addresses acquired by purchased or rented lists are not covered under this guarantee.
  • Free service providers such as Yahoo, AOL will not be covered
  • Bounces resulting from technical issues, sender reputation being poor, recipient server reaching maximum receiving capacity, mail server being improperly configured, server not being available, or recipient having specifically banned the sender's email identity, delivery blocked due to internal rules etc. won't qualify for this guarantee.

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.