How are comments being left on a site under a Maintenance page?

I just had a surprise… for the second time. Same comment was left a couple of weeks ago at the same web site that is under a Maintenance page. I would have thought that nobody could get at any of the pages while Maintenance is activated. Here’s what I found as the “comment” that came to me by email notification from my wordpress installation:

Author: GDIZ (IP address:)
Email:
URL:
Comment:
Hi! Sorry i just curious, what template did you use for your website? I want to use it on my website at

How is SPAM like this managing to get through the Maintenance page?

Thanks for your time.

• This topic was modified 2 months ago by James Huff.
• This topic was modified 2 months ago by James Huff. Reason: email address, IP address, and spam URLs removed from public forums

The page I need help with: [log in to see the link]