How do I tell Microsoft Security Essentials to not block a website?

I was on a trusted website when MSE blocked it. The page display changed to the website's address and host, and only the option of "Go to my home page instead". I notified the host, but I want the host to be considered safe by MSE if that's even possible. I've never had MSE flag a page on one of my trusted sites before and I would recognize a redirect or a fake alert. (Only Mediafire caught me off guard once, years ago before I blacklisted them for allowing a background process that attempted to hack me. But they had questionable practices to begin with, and I have both my wits about me and additional security measures.) This site is a community forum that I've been using regularly for over a year, and while it would make a worthy target due to a high volume of gullible people visiting, I'd rather deal with the threat on my own than have MSE block the content completely. Having said that, I do like MSE for some reason so removing it is out of the question.