I think you need to reconfigure dns after changing dns servers ip for
exchange to route in a healthy way

"Atleti de Madrid" <atleti_de_madrid@yahoo.es> wrote in message
news:%235N9BMZOEHA.620@TK2MSFTNGP10.phx.gbl...
which we use to run an Outlook 2003 cliente.
the loopback adapter, and configured it with other IP to avoid network
crashes with the LAN adapter, even changed the "C-Class" of the IP.