Understand what the results you receive from the MORE API services mean
The table explains the results received from the MORE API service:
| MORE Main Response Codes | MORE Additional Status Codes | Explanation |
| Ok | Success | Safe to send. |
| Bad | Domain is Inexistent | The domain of the email address does not exist. |
| Mailbox full | The mailbox of the email address is full and can not receive any more emails. | |
| Mailbox does not exist | The domain exists but the mailbox does not exist on the mail server. | |
| Mail server fault detected | The mail server has been incorrectly configured. | |
| No MX servers found | No MX servers could be found for the email address. | |
| Server does not support international mailboxes | The server does not accept international characters. eg: Chinese alphabet. For further information see https://en.wikipedia.org/wiki/Punycode | |
| Too many @ signs found | The email address contains more than one @ symbol. | |
| Possible spam trap detected | Do Not email, this email address is a spam trap. | |
| Unverifiable | None | We were unable to retrieve any information on the email address. |
| Greylisting | The email server is employing greylisting. For more information, visit https://en.wikipedia.org/wiki/greylisting | |
| Domain is well known disposable email address | This is a disposable email address, do not email. | |
| Unknown | No information was returned by the server. | |
| Unpredictable system | Mail servers that behave in an unpredictable way, giving false results. | |
| Server is catch all | The server accepts any email address as long as the domain is correct. | |
| Retry later | Transient network fault | We were unable to retrieve any information at this point in time. Please try again later. |