Status Codes
When an email is verified or checked, it receives a status code that indicates whether it’s safe to send to, risky, invalid, or restricted. Understanding these codes helps you keep your list healthy, improve deliverability, and avoid potential compliance issues.
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Status
Status Code
Description
Category
Valid
valid
The email address exists and is safe to send to.
Valid
Secondary
secondary
A secondary email address of a user.
Valid
Temporary
temporary_email
From a temporary or throwaway email service.
Risky
Typo
typo
An email with a typo in the domain name.
Risky
Forwarding
forwarding_address
The domain forwards email through another mail server.
Risky
Catch-all
catch_all
Server accepts all addresses; deliverability uncertain.
Risky
Role-based
role_based
A shared email such as info@ or support@.
Risky
Role-based catch-all
role_based_catch_all
A role address on a catch-all server.  
Risky
Greylisted
greylisted
Temporarily rejected by the server, which may work later.
Risky
Unexpected error
unexpected_error
An unexpected error happened during validation.
Risky
Mail server temporary error
mail_server_temp_error
Server returned a temporary error.     
Risky
Possible spam trap
possible_trap
Contains spam trap keywords e.g. spam@.
Risky
High risk (bots)
high_risk
Known for abusive or fraudulent bot activity.
Risky
Full mailbox
full_mailbox
Inbox full—rejecting new mail.            
Invalid
Invalid email format
wrong_format
The email address format is invalid.   
Invalid
No mail accepted
no_mail_accepted
The domain doesn't accept incoming email.
Invalid
No mailbox
no_mailbox
The mailbox doesn't exist at this domain.
Invalid
No DNS
no_dns
The domain has no DNS or MX records.
Invalid
Unreachable domain
unreachable_domain
The domain points to an unreachable IP.
Invalid
Anti-spam system
anti_spam
Blocked by an anti-spam system during the check.
Invalid
SMTP failure
smtp_failed
The mail server doesn’t allow an SMTP connection.
Invalid
Connection timeout
connection_timeout
Validation timed out due to slow reply.
Invalid
Connection dropped
connection_dropped
The server immediately closed the connection.
Invalid
Mail server did not respond
mail_server_no_response
No response from server during check.
Invalid
Spam trap
spam_trap
Likely trap address; should never be emailed.
Restricted
Abuse-tied email
abuse
The user has a frequent history of marking emails as spam.
Restricted
Globally suppressed
globally_suppressed
The email is on a global suppression list of complainers and litigators.
Restricted
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