gmane.discuss

Jens Müller | 11 Jul 11:04

Allow posting through Gmane

Hi!

Is there a short description what exactly a list administrator (here: 
Mailman) has to do in order to allow posting through Gmane by 
non-subscribed users?

Regards,

Jens

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Frank Ellermann | 11 Jul 22:26

Re: Allow posting through Gmane

Jens Müller wrote:

> Is there a short description what exactly a list administrator
> (here: Mailman) has to do in order to allow posting through 
> Gmane by non-subscribed users?

None I'm aware of.  Some technical details are simple:

(1) GMaNe uses the term "public" for a list where all users can
    post without subscription.  For each list x and 2822-From y
    the first article triggers a mail challenge to y, after that
    y can post on x as (s)he sees fit.
    [Simplified, of course the 2822-From is actually a News-From
     at this point]
(2) For a non-public list the procedure is exactly the same, but
    the challenge informs the first time posters that they need
    a subscription.
(3) GMaNe uses unique addresses z per list x, as envelope sender
    address (2821 MAIL FROM) and 2822-Sender address.  The list
    would see an SPF PASS for a subscribed address z.  (And FWIW
    a Sender ID PASS for the "purported responsible address" z.)
(4) IOW the list x sees 2822-From y, Sender z, Return-Path z.
    I've no idea what else Mailman can do, but it obviously can
    insist on a subscription of y (the 2822-From).  
(5) Things can be interesting when posters use Reply-To w != y,
    but it is possible to survive the experience, at least on
    lists not mutilating a given Reply-To w to a Reply-To list.
(6) Cross-posts are also very interesting, from GMaNe's POV (in
    its archives) X-Posts can have made it to all lists carried
    by GMaNe, when the X-Post in fact made it only to at least

(Continue reading)

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Jens Müller | 12 Jul 07:42

Re: Allow posting through Gmane

Frank Ellermann schrieb:
> Jens Müller wrote:
> 
>> Is there a short description what exactly a list administrator
>> (here: Mailman) has to do in order to allow posting through 
>> Gmane by non-subscribed users?
> 
> None I'm aware of.  Some technical details are simple:
> 
> (1) GMaNe uses the term "public" for a list where all users can
>     post without subscription.  For each list x and 2822-From y
>     the first article triggers a mail challenge to y, after that
>     y can post on x as (s)he sees fit.
>     [Simplified, of course the 2822-From is actually a News-From
>      at this point]
>

My question was more how a list administrator can make a list public for 
posting via Gmane without accepting all mail (which might not be a good 
idea due to spam).

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Steinar Bang | 12 Jul 10:21

Re: Allow posting through Gmane

>>>>> Jens Müller <blog <at> tessarakt.de>:

> Is there a short description what exactly a list administrator (here:
> Mailman) has to do in order to allow posting through Gmane by
> non-subscribed users?

Some versions of mailman (used to be: not the one used by sourceforge)
looks at the envelope sender, and the envelope sender is the email
address gmane is subscribed with.

So with those mailman versions things should be ok.