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Autor: Florian Zieboll
Data:  
Para: dng
Assunto: Re: [DNG] Semi OT: Mailman, Lurker and referencing messages
On Tue, 2 Feb 2016 10:45:22 +0100
Jaromil <jaromil@???> wrote:

> On Tue, 02 Feb 2016, Florian Zieboll wrote:
>
> > Another loose thought on this: To spare the mailing list machine(s)
> > the additional burden of hashing, wouldn't it be sufficient to add
> > a simple counter to mailman and make it inject the count (plus
> > perhaps some list and/or machine ID) as a new header to the mail
> > before passing it to the archiver?
>
> I haven't look at any existing solution, but I believe that a good
> approach would be to use the actual message-id: in the headers, which
> is also an identifier to retrieve email from lurker. But I have no
> idea if that header is exported as a variable for mailman's templates.


The mailman wiki document(1) that hellekin had linked in this thread,
states regarding the message-ID header

| ...that RFC 2822 does not require the header, instead specifying that
| the header SHOULD be included. The header also SHOULD be globally
| unique but of course, because this is supplied by the client, it may
| no actually be unique.


Also my "simple counter" approach gets questioned (I should have read
it earlier), due to the possibility of a counter reset by the mailing
list software. So why not combine it with a time stamp? For the worst
case the archiver should be able to handle duplicate sequence numbers,
e.g. by appending a suffix and - when queried for such a duplicate -
presenting a choice of all applicable messages.

Florian

(1) http://wiki.list.org/DEV/Stable%20URLs