1. Email Hippo knowledge base
  2. MORE
  3. Understanding the verification results

MORE verification results explained

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.