[Mailman-Developers] [Bug 985149] [NEW] Add List-Post value to permalink hash input

[Stephen J. Turnbull]

On Thu, Apr 19, 2012 at 5:03 AM, Barry Warsaw <barry at list.org> wrote:

>  - Proposal is to append the List-Post value as input to the hash, after
>   the Message-ID value (sans angle brackets).

First, List-POST, not List-ID?  List-Post is not permanent!

Second, that order is wrong IMHO; the idea of the hash is to identify
the message in a fixed-length format.  If you want to qualify it with
list information, why not add the list identifier to the *output* of
the hash?  Now you have a well-defined[1] format that (1) allows you
to distinguish cross-posted instances of the same message *and* (2)
identify cross-posted instances of the same message, depending on your
application.

Yoroshiku,
Steve

[1] I haven't read the List-ID RFC recently, but I think its format is
quite restricted and likely to be of reasonable length.  I don't see
why Mailman can't require a List-ID for every list.