We have a number of web sites that are hosted on a server inside our corporate network. A Forefront TMG is an internet gateway for the network. We have done a web site publishing through forefront.
Sometimes we need to turn off the web server. When it is off, a request to a site gets to TMG, TMG tries to retrieve a page from the web server inside the network, fails, because the server is off, and returns the Error Code 10061: Connection refused to the client browser.
Is there a way to configure a custom "Oops, try again later" page on TMG for such cases? If yes, how?