Whatever happened to classmates.com?

I keep getting these really annoying spam messages (I'm sure I solicited them eons ago when I first graduated from college...but still) from classmates.com. Of course, they have the requisite "Unsubscribe" link at the bottom of the email, but when you click it classmates.com refuses the connection. Really annoying. I get the same when I try to go directly to classmates.com. I thought they were profitable at one point. Did they go bankrupt? If so, where do these emails come from?

More importantly, how do I successfully unsubscribe from this crap-fest?

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