Re: Allow posting through Gmane
Frank Ellermann <hmdmhdfmhdjmzdtjmzdtzktdkztdjz <at> gmail.com>
2008-07-11 20:26:46 GMT
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
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