I'm having troubles sending emails to my domain. I can send emails from my website, say to my sbcglobal account. But, when I try to reply from my sbcglobal account and send it back to my domain site, I get this following error:
Remote host said: 550
Recipient address rejected: User unknown in virtual alias table
The emails i'm trying to send to my domain site keep bouncing back to my sbcglobal account. What can I do to fix this problem?