There happen situations when a user needs to contact/be contacted via email. The reasons to establish an email connection may be different, a password reminder among them. In order to enable such a connection as the Hardware Node administrator, you have to set up an email gateway by specifying the IP address of the mail relay server to send notifications and other mail through.
The Proxy subtab of the Network tab of a Hardware Node displays the IP addresses of the email gateway and proxy server of the Hardware Node. To edit any of these, click the Configure button on this page or Configure -> Proxy Settings on the Infrastructure Manager toolbar.