That particular close reason is simply a variation on ***your question is not [on-topic][1]***. As long as the motto still is:

> [Server Fault is a question and answer site for professional system and network administrators.][2] 

That close reason can still stand.

The alternative is to simply phrase it both more bluntly and generic as something along the lines:

> **Questions must be [on-topic][3]** and within the site scope as decided by the [Server Fault community][4].  
> Your question may be more appropriate and on-topic in one of the other [related Stack Exchange communities][5]. 

Possibly including a link to a recent discussion on Meta about the site scope. 




  [1]: http://serverfault.com/help/on-topic
  [2]: http://serverfault.com/tour
  [3]: http://serverfault.com/help/on-topic
  [4]: http://meta.serverfault.com/
  [5]: http://stackexchange.com/sites#technology