I'm trying to find a way to change the message returned for the following reasons:
550 Requested action not taken. The domain you are sending from is not permitted to access this
530 domain.com MailEnable ESMTP Service, Version: 8.51-- denied access at 04/17/15 01:58:27
503 This mail server requires authentication When Attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify the que domain or address is defined for this server.
Did not want to give this information to spammers.
I thank the help.