Can't receive emails
Can't receive emails
when i try to send email to any user on my domain I'm getting the following error.
his message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error.
Xx@xxxxx.com INVALID_ADDRESS, ERROR_CODE :554, ERROR_CODE :5.7.1 <
Xx@xxxxx.com>: Recipient address rejected: user
Xx@xxxxx.com does not exist
Users can send email but can't receive replies. This is a critical issue. What's going on??!!