read-only test of some free news servers (using Tor Browser 13.0.15):

http://put.hk/reader.jsp?server=paganini.bofh.team&btnsubmit=Go

Server: paganini.bofh.team (48696)

http://put.hk/reader.jsp?server=freenews.netfront.net&btnsubmit=Go

Server: freenews.netfront.net (47473)

http://put.hk/reader.jsp?server=news.samoylyk.net&btnsubmit=Go

Server: news.samoylyk.net (45909)

http://put.hk/reader.jsp?server=news.dizum.net&btnsubmit=Go

Server: news.dizum.net (45728)

http://put.hk/reader.jsp?server=news.alphared.net&btnsubmit=Go

Server: news.alphared.net (45728)

http://put.hk/reader.jsp?server=news.blueworldhosting.com&btnsubmit=Go

Server: news.blueworldhosting.com (45059)

http://put.hk/reader.jsp?server=news.novabbs.org&btnsubmit=Go

Server: news.novabbs.org (42485)

http://put.hk/reader.jsp?server=news.i2pn2.org&btnsubmit=Go

Server: news.i2pn2.org (42473)

http://put.hk/reader.jsp?server=news.mixmin.net&btnsubmit=Go

Server: news.mixmin.net (41841)

http://put.hk/reader.jsp?server=news.alt119.net&btnsubmit=Go

Server: news.alt119.net (40530)

http://put.hk/reader.jsp?server=news.usenet.ovh&btnsubmit=Go

Server: news.usenet.ovh (15322)

http://put.hk/reader.jsp?server=gallaxial.com&btnsubmit=Go

Server: gallaxial.com (5504)

http://put.hk/reader.jsp?server=news.chmurka.net&btnsubmit=Go

Server: news.chmurka.net (3752)

http://put.hk/reader.jsp?server=news.grc.com&btnsubmit=Go

Server: news.grc.com (39)

http://put.hk/reader.jsp?server=news.eternal-september.org&btnsubmit=Go >Server: news.eternal-september.org (12) *requires login, tor disabled

there are probably dozens of other free news servers, some of which
are known to work with tor and also use ssl/port 563, albeit posting
via some of these free news servers may not work with or without tor;

see also:

List of Free Usenet Servers: https://sybershock.com/#usenet

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