123 Marbella Internet Services - Knowledgebase - 550 Not local Host Error when sending email.

550 Not local Host Error when sending email.

This means that your email programme is not configured properly and that you have not correctly configured your smtp authentication settings.

An issue you will have noticed that when you send email to internal 123 Marbella hosted domains or your own domain the email goes through, but when you try and send to any external email address say hotmail, the email gets bounced with an error saying "550 not local host"