I personally (and my company more broadly) receive nonstop email spam from offshore recruiting agencies about a candidate that they have on C2C (this apparently means something in the shady H1-B contracting world). They have no legally-mandated unsubscribe button or address listed. I have personally asked 1 company to unsubscribe me I believe 15 times now (we re up to 4-8 for the other firms). They re hosted by Tata Telecommunications, and I ve started forwarding the spam to abuse@tatatel.co.in, but I highly doubt Indian regulators are going to jump in here.Yes, Outlook has their emails go to spam now, but that s just another folder in my inbox. I am specifically interested in having their domain flagged so as to put them out of business at least temporarily. I ve been forwarding their emails to Spamcop as well, but I m not really clear what that does.Is there a body other than Tata Telecommunications that I can appeal to? If they were hosted by a US company I d complain to them. How do you report a spamming operation so as to knock them out?