Outgoing email for contacto@fruterialatamaulipeca.com blocked why, no reason

Outgoing email for contacto@fruterialatamaulipeca.com blocked why, no reason

Help. Why I received a message EMAIL OUTGOING BLOCKED??? we are not even using the email yet. Only one or 2 emails have been sent as test.  IPlease unblock. Also the email forwarding configured at control panel I had set up was disabled. Please help.
contacto@fruterialatamaulipeca.com