From Newsgroup: news.software.readers

The groups are infested with left-wing trolls suffering from TDS and ICE dementia.

It is definitely Thunderbird doing it. A brand new install on a brand
new VM will exhibit the exact same behavior. It does not occur on any
other news software.

If Thunderbird is censoring postings without telling you, imagine what
it's doing with things that really matter, like your personal info,
financial data, health and employment information.

Alternatives to consider.

https://www.claws-mail.org/

https://www.forteinc.com/agent/

https://client-index.newshosting.com/nh/3.2.2/win/newshosting_setup_3.2.2.exe

https://xnews.en.uptodown.com/windows/download


--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

"Cheep Cheep..." wrote:

It is definitely Thunderbird doing it.

Some people are so wrong, it's not worth trying to explain to them ...

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

Cheep Cheep... <cheep.cheep@thunderbird.org> wrote:

The groups are infested with left-wing trolls suffering from TDS and ICE dementia.

It is definitely Thunderbird doing it.

Lol. Sure.

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

I Dunno...seems your crosspost worked fine..
From: "Cheep Cheep..." <cheep.cheep@thunderbird.org>
Newsgroups: alt.comp.software.thunderbird,news.software.readers,alt.comp.os.windows-11 Subject: Crappy Thunderbird is now blocking cross-posting to certain
newsgroup combinations
Date: Mon, 19 Jan 2026 21:01:57 -0800

On Mon, 19 Jan 2026 21:01:57 -0800, "Cheep Cheep..." <cheep.cheep@thunderbird.org> wrote:

The groups are infested with left-wing trolls suffering from TDS and ICE >dementia.

It is definitely Thunderbird doing it. A brand new install on a brand
new VM will exhibit the exact same behavior. It does not occur on any
other news software.

If Thunderbird is censoring postings without telling you, imagine what
it's doing with things that really matter, like your personal info, >financial data, health and employment information.

Alternatives to consider.

https://www.claws-mail.org/

https://www.forteinc.com/agent/

https://client-index.newshosting.com/nh/3.2.2/win/newshosting_setup_3.2.2.exe

https://xnews.en.uptodown.com/windows/download

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

On 1/19/2026 10:01 PM, Cheep Cheep... wrote:

It is definitely Thunderbird doing it. A brand new install on a brand
new VM will exhibit the exact same behavior. It does not occur on any
other news software.

I use TB version 45.0 because I like it. And because it can be set to
not update itself. It is still available, or was when I got it, at
various sites. It likely will solve your problem, or at least your
paranoia... 8-O

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

AJL wrote:

I use TB version 45.0 because I like it. And because it can be set to
not update itself. It is still available, or was when I got it, at
various sites.

Mah, "varios sites". Only fetch your software from the original developer,
in this case Mozilla:
https://ftp.mozilla.org/pub/thunderbird/releases/
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

"Cheep Cheep..." <cheep.cheep@thunderbird.org> wrote:

The groups are infested with left-wing trolls suffering from TDS and ICE dementia.

It is definitely Thunderbird doing it. A brand new install on a brand
new VM will exhibit the exact same behavior. It does not occur on any
other news software.

If Thunderbird is censoring postings without telling you, imagine what
it's doing with things that really matter, like your personal info, financial data, health and employment information.

Alternatives to consider.

https://www.claws-mail.org/

https://www.forteinc.com/agent/

https://client-index.newshosting.com/nh/3.2.2/win/newshosting_setup_3.2.2.exe

https://xnews.en.uptodown.com/windows/download

Did you actually try those alternatives, and with the same NNTP server
in each, to verify your claim? Nope.

Same Tbird installed fresh in a VM -- but likely you specified the same
NNTP server(s) under which you subscribe to the unidentified newsgroups. Whatever Usenet provider you chose is doing the blocking, so use a
different Usenet provider.

You posted this using paganini BOFH. That is a free an unregistered
Usenet provider (and unregistered means more trolls). Try using Eternal-September. It is free but registered: you have to get an
account before you can outside the eternal-september.* newsgroups.
Registration is free, but you have to configure your NNTP client to log
into their server.

paganini probably has filters to bar cross-posting to garbage
newsgroups. ES does have such filters. You can ask in the ES newsgroup (eternal-september.support) if you believe the garbage newsgroups to
which you cross-post are included in his anti-noise filters.
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

On Tue, 1/20/2026 12:01 AM, Cheep Cheep... wrote:

It is definitely Thunderbird doing it.-a A brand new install on a brand new VM will exhibit the exact same behavior.-a
It does not occur on any other news software.

The server and the server administrator control crossposting.
Using CleanFeed and SpamAssassin, they can also add arbitrary
rules concerning content. (The original CleanFeed had a
rule to block Nike running shoe adverts :-) As a demo filter.)

Some of the servers had additional filtering added, when
the ThaiSpam event occurred. That was a flood attack on
select groups. That's the event that caused Google to shut
down the NNTP interface to groups.google.com . It caused
one other free server to go "Read Only". The server administrator
sets it to ReadOnly, Thunderbird does not do that.

You can set up a test server, an INND, and do some better
quality controlled testing. When you first start running
the server, it has very few crosspost rules. The server
might be limited to crosspost of twelve by default, and
that's a global rule for all groups.

That's the kind of control you need over the materials,
to be making claims of "this and that". Nobody here believes
you, because we know how it works.

The USENET clients have a really easy job. The user types
shit in the window, the USENET client copies that into
a block of text and sends it. The server decides to accept
it, or reject it (along with a numeric error code). You can
study this, by setting your clients for Port 119 and using
Wireshark to record the (plaintext) packets.

To prove the honesty of the client, use Wireshark. Wireshark
will record the Newsgroups: line being sent off in your posting.
This *proves* that Thunderbird did not modify the group list.
It is right in the Wireshark trace. Right after this is sent,
the server can send "123 Excessive Crosspost" back to you, and that
is the server doing the parsing and analysis regarding the
server-enforced crosspost rule. Each group can have a custom
rule regarding when to reject a message. And by using Port 119,
this is available for you to read, in (relatively) plain English.

Newsgroups: alt.comp.software.thunderbird,news.software.readers,alt.comp.os.windows-11

More info about Wireshark, here.

https://en.wikipedia.org/wiki/Wireshark

Paul



--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

On 1/19/2026 11:01 PM, Cheep Cheep... wrote:

The groups are infested with left-wing trolls suffering from TDS and ICE dementia.

It is definitely Thunderbird doing it.-a A brand new install on a brand
new VM will exhibit the exact same behavior.-a It does not occur on any other news software.

...

It ain't Thunderbird. I just posted a message using Eternal-September
across five different groups, starting with rec.arts.sf.written .

Lynn

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: news.software.readers

On 21/01/2026 13:21, Lynn McGuire wrote:

On 1/19/2026 11:01 PM, Cheep Cheep... wrote:

The groups are infested with left-wing trolls suffering from TDS and
ICE dementia.

It is definitely Thunderbird doing it.-a A brand new install on a brand
new VM will exhibit the exact same behavior.-a It does not occur on any
other news software.

...

It ain't Thunderbird.-a I just posted a message using Eternal-September across five different groups, starting with rec.arts.sf.written .

It's been pointed out to the OP that it's not a TB restriction but
enforced by the server to which they are post, but that doesn't fit
their performative paranoia and they refuse to acknowledge it.

Cheers,
Gary B-)
--- Synchronet 3.21a-Linux NewsLink 1.2