The vast majority of the spam I receive are hosted by amazon, with the senders domian "livedeals" or "bluedeals", I've lost count of the number of emails I've forwarded to abuse@amazon, just then to receive a standard reply, it also seems next to impossible to engage in a conversation with amazon.
I've started posting on amazons twitter page in hope they might deal with this issue, i'm also pondering the idea of posting on Andy Jassy twitter page. In the past I received a lot of spam hosted by OVh, they did nothing until I approached their CEO via twitter