API Documentation

Learn about the overall functionality of the MailerCheck API.

Possible email verification results

The possible outcome of an email validation are:

valid Email is safe to send.
syntax_error Email is not valid. Do not send to.
typo Email address has a typo. Correct email address and retest.
mailbox_not_found Recipient’s inbox does not exist. Do not send.
catch_all Recipient's mail server will accept emails to this address, but we cannot guarantee this email address belongs to a person.
mailbox_full Recipient’s inbox is full and may not be able to receive new emails. Use caution when sending.
unknown We are unable to determine if the email is valid or not valid. Use caution when sending.

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