We added a page named 404.asp and turned on custom error pages in Plesk.
This page contains the following:
<%@ Language=VBScript %>
' Permanent redirection
Response.Status="301 Moved Permanently"
Response.AddHeader "Location", "http://www.domain.com/"
If someone trys to go to a none existent page we want them forwarded to our main page.
They get the following...
The requested document was not found on this server.