I'll try explain my question in an organized fashion. I have a Windows Server 2008 box. Let's call it the management server. It has two NICs. Let's say NIC1 has an IP of 10.1.1.5. NIC2 has an IP of 192.168.1.5. NIC1 can get to the internet. NIC2 is internal only and does not connect to the outside world. Now - I have a UPS on the internal network. Say 192.168.1.6. The management server and UPS are connected via a somewhat cheap but functional router. The UPS can not get directly to the internet or the 10.1.1.0 network. I would like to configure the UPS to be able to send notification emails through the exchange server that is, say, 10.1.1.10. So. How do I do that? Cheers.

Hi Barry, You have a couple of options here * The simplest option, Plug the UPS into the public network (and secure it properly) * Assuming you run Exchange on your Server with both NIC's connected, set up a mail account on exchange for the ups, something like ups@contoso.com. Once that is done, on your UPS, configure the email address as a local domain for example ups@contoso.local (or whatever domain format you use) so essentially the UPS will connect to the mail server via the private NIC on the server * Another way of achieving this is to create a VLAN for devices such as UPS and other items that need mail access to the outside world. You can be crafty in how you implement this in terms of only bridging public access for certain ports (e.g. mail server ports only) I hope this is of help. If you wish to supply further information about your environment I can further elaborate on my points. Kind Regards, Martin If you find my information useful, please rate it. :-)

Thanks for your reply Martin. I ended up setting up the 'management server' as an SMTP server to accomplish what I wanted. I locked it down so only the UPS can send email through it.