A note on accept-all emails
Accept-all emails have a domain that will accept any email address sent to it. These emails are generally not safe to send to, as they will always return a valid response. Even though they say a particular email address exists, These emails can bounce once the message body is sent to the email server.
Truelist will mark these emails as accept-all, as they are generally not safe to send to. These emails are also not part of the highest reach or safest bet CSV downloads. If you have a high number of accept-all emails, you may want to consider removing them from your list before sending. Accept-all emails are generally used to catch spam, and sending to them can hurt your sender reputation.