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  • From: Xavier Bachelot <address@concealed>
  • To: Josh <address@concealed>, Matthew Goebel <address@concealed>
  • Cc: address@concealed
  • Subject: Re: [en@sympa] Preventing Duplicate Messages?
  • Date: Fri, 15 Nov 2024 19:49:54 +0100

Le 15 novembre 2024 18:22:32 GMT+01:00, Josh <address@concealed> a
écrit :
>Hi Matt -
>
>I appreciate the quick reply. We're looking to migrate from our home-grown
>system to Sympa, but we have something like 25,000 programmatically
>generated lists (Higher Education -- Majors, Minors, Concentrations, Course
>Sections, etc) over. I was hoping we missed something in the documentation.
>If not, we may have to stay with home-grown system.
>
>On Fri, Nov 15, 2024 at 12:01 PM Matthew Goebel <address@concealed> wrote:
>
>> You could make lists which include membership of the other lists
>>
>> ie...
>> address@concealed : includes the membership of lists x and y
>> address@concealed : includes the membership of lists x and y
>> and z
>>
>> not going to scale very well with more than three lists, and you have to
>> remember to send to the aggregate lists
>>
>> Thanks,
>> Matt
>>
>>
>> On Fri, Nov 15, 2024 at 11:56 AM Josh <address@concealed> wrote:
>>
>>> Take the following scenario:
>>>
>>> User A is a member of the following Sympa Mailing Lists:
>>> address@concealed
>>> address@concealed
>>> address@concealed
>>>
>>> If an email is sent (To: or Cc: field) to address@concealed,
>>> address@concealed, and
>>> address@concealed, *how can User A only receive one single message
>>> instead of three?*
>>>
>>> I found a very old posting here (
>>> https://listes.renater.fr/sympa/arc/sympa-users/2007-04/msg00039.html)
>>> with a similar scenario but no resolution and I am unable to find anything
>>> in the documentation for how to implement this.
>>>
>>> Any help would be greatly appreciated.
>>>
>>>
>>
>> --
>> Matthew Goebel : m <address@concealed>address@concealed : Unix
>> Jockey @ EMU : Hail Eris
>> Neo-Student, Net Lurker, Donut consumer, and procrastinating medher...
>> "Always with the negative waves, Moriarty" - Oddball
>> "Comfort the troubled, and trouble the comfortable." - Dietrich Bonhoeffer
>>
>>
>>


Hi Josh,

Maybe list inclusion ?
Only the leaf lists contains people, all lists higher in the tree contains
only inclusion of leaf lists
This would automagically de-duplicate people.

Regards,
Xavier



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