Hi
i have a site with RSS. You can access the rss of all categories, or for some categories only. examples:

mysite.com/rss
mysite.com/rss/cat1
mysite.com/rss/cat2

What should i send to the client if he tries to access a non existent rss category? for example:
mysite.com/rss/non-existent-cat

?

Thanks,