Email bounced and I can't understand error mesage. Please advise.?-Collection of common programming errors

The recipient does not exist. Check the spelling again! It’s also possible that the person you’re emailing has stopped that account.

The clue is the line “user unknown” from the remote host. The remote host is just the machine after the @ in the email address. It does not recognise the bit before the @. (eg for [email protected], fred is the user and yahoo.com is the host).

Originally posted 2013-11-09 23:16:55.