[Mailman-Developers] Re: Anonymous mailing lists

2020-09-15 Thread Stephen J. Turnbull
Mark Sapiro writes:

 > Steve is not saying the option is not provided. It is provided in both
 > Mailman 2.1 and Mailman 3. He is giving reasons why you might not want
 > to use it.

Also, I think Mailman 3 provides Pretty Good Anonymity[tm], but we
welcome further suggestions.  No promises about inclusion or timing if
accepted, of course, but suggestions are welcome and will be taken
seriously vs. resources available.
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[Mailman-Developers] Re: Anonymous mailing lists

2020-09-15 Thread Mark Sapiro
On 9/15/20 7:17 AM, Alessandro Vesely wrote:
> 
> So, in practice, you say that anonymity as a list option is not provided
> because users don't need/ want it.  Correct?


Steve is not saying the option is not provided. It is provided in both
Mailman 2.1 and Mailman 3. He is giving reasons why you might not want
to use it.

-- 
Mark Sapiro The highway is for gamblers,
San Francisco Bay Area, Californiabetter use your sense - B. Dylan
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[Mailman-Developers] Re: Anonymous mailing lists

2020-09-15 Thread Alessandro Vesely

On Tue 15/Sep/2020 13:58:24 +0200 Stephen J. Turnbull wrote:

ves...@tana.it writes:


Someone started talking about the risk of having their names and
email addresses archived in a publicly accessible mailing list.  So
I thought I'd ask.  In short, the proposal provided for completely
removing such data, to protect privacy.


Mark provides the practical stuff.  Here's some theory.

"Completely" is a really hard problem given that some people obfuscate
their addresses in .signatures and in text, and the difficulty of
recognizing personal names.

There's also the fact that an anonymous list is a flag that you've got
people who want to be anonymous.  A big bullseye for troublemakers
(and the FBI, the MSS, and the GRU).



So, in practice, you say that anonymity as a list option is not provided 
because users don't need/ want it.  Correct?




As an additional bonus, that would also "solve" any DMARC problem.


Sure, but the cost is extremely high.  I like to know who's posting.



me too.

There are other possible DMARC workarounds.  I'll be back soon...


Best
Ale
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[Mailman-Developers] Re: Anonymous mailing lists

2020-09-14 Thread Mark Sapiro
On 9/14/20 11:03 AM, ves...@tana.it wrote:
> Someone started talking about the risk of having their names and email 
> addresses archived in a publicly accessible mailing list.  So I thought I'd 
> ask.  In short, the proposal provided for completely removing such data, to 
> protect privacy.  See here for more:
> https://mailarchive.ietf.org/arch/msg/dmarc/fEi0-1NFP-rkrx70Ne1t7fPzldA
> (There are more threads there mentioning Mailman, in case your ears are 
> burning.)
> 
> As an additional bonus, that would also "solve" any DMARC problem.
> 
> Is there a FAQ entry for this?


I don't think there is a FAQ on it, but it is a configuration option.

In Mailman 2.1 set General Options -> anonymous_list to Yes in the web
admin UI. In MM3 Postorius set Settings -> Alter Messages -> Anonymous
list to Yes.

The descriptions say this removes From: Sender: and Reply-To: headers
and this is true, It also replaces From: and Reply-To: with the list
address. Both MM2.1 and MM3 also remove X-Originating-Email:

Mailman 2.1 is more aggressive. It also removes all Received: and
X-Envelope-From: headers and replaces Message-ID:. Additionally, it
remove all headers that don't match patterns in the
mm_cfg.py/Defaults.py setting ANONYMOUS_LIST_KEEP_HEADERS. By default,
this removes all X-* headers except X-Mailman-*, X-Content-Filtered-By:,
X-Topics:, X-Ack:, X-Beenthere:, X-List-Administrivia: and X-Spam-*.

-- 
Mark Sapiro The highway is for gamblers,
San Francisco Bay Area, Californiabetter use your sense - B. Dylan
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