Does anyone know of a working m2n gateway, and how to psot to it? I used to use anon.lcs.mit.edu and newsanon.yi.org, but they don't appear to work now.
Many of the free and university sponsored sites are shutting down or restricting inbound mail from their internal networks only due to abuse.
There were a couple of GNU Project sites that just recently shut down as well - for - you guessed it - big-time abuse. Providers have some pretty serious consequences if their domains/ip blocks become known areas that generate spam.
Here is an additional list that you can check. It is not a new list - but you may find some useful and still open sites: