Email verification statuses explained

Email is safe to send.


Recipient's mail server will accept emails to this address, but we cannot guarantee this email address belongs to a person. Learn more about catch-all email addresses.


We are unable to determine if the email is valid or not valid. Use caution when sending.

Mailbox full

Recipient’s inbox is full and may not be able to receive new emails. Use caution when sending.

Past delivery issues

We have detected past delivery issues with these recipients. User caution when sending.

Role based

Emails that may or may not be monitored routinely by a person. Use caution when sending.

Mailbox not found

Recipient’s inbox does not exist. Do not send.

Syntax error

Email is not valid. Do not send to.


Email address has a typo. Correct email address and retest.


These email addresses should be removed from your lists. These are temporary email addresses people use to avoid getting spam in their inbox. Learn more about disposable email addresses.