I get this error '553 sorry, that domain isn’t in my list of allowed rcpthosts'. What happened and what do I do?

DETAILS

We use a "POP before SMTP" rule. That is, you have to check your email before you can send email. You will get this error if you tried to send email without first checking your email.

Article ID: 230, Created On: 11/29/2005, Modified: 11/29/2005