They are all still exist, although not used as much as it should be in my opinion. There is Usenet spam today, although in my experience, most of it comes from

They are all still exist, although not used as much as it should be in my opinion. There is Usenet spam today, although in my experience, most of it comes from Google Groups (although there are good messages from Google Groups too); I have not seen spam coming from other servers (there probably used to be a lot more from other servers, I suppose).