I'm not a laywer, nor I know US laws, but mustn't DMCA takedown notice include full contact details on entity who owns a copyrighted materials and, thus, sent t

I'm not a laywer, nor I know US laws, but mustn't DMCA takedown notice include full contact details on entity who owns a copyrighted materials and, thus, sent the notice? I'm not sure, but I suspect, without those, the notice is legally void and provider should just drop it as junk mail.