McAfee Site Advisor

I’m trying to submit one of my sites as a “safe” site to McAfee site advisor.

Here is what I get when I do that:

Error Submitting Site for Verification

It appears that the Web site mysitehere.net is returning an HTTP 200 status response code in the header of 404 pages.

We cannot verify a Web site that is configured this way because it allows anyone to verify themselves as the owner of your site. Please update your Web site server configuration to return 404 status codes in the headers for pages that do not exist. Once your site is configured this way then you can return and request a file name verification.

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My host says it is in the WP software. I’m looking for how to remedy this. Is there a page I can replace that will give me the proper response?

Thanks.