I have a new server using Cpanel/WHM and although we've had a few little problems a majority of our clients are getting emails bounced back
> >>>> A message that you sent could not be delivered to one or more of its
> >>>> recipients. This is a permanent error. The following address(es)
> >> failed:
> >>>> unrouteable mail domain
Although the doamin the message is being sent to is a good one we've restarted Exim and the problem still persist .
Can anyone help us out on what's going on ?