The mailing list for listmasters using Sympa

[Marco Gaiarin <address@concealed>]

Mandi! Steve Shipway
  In chel di` si favelave...

> So -- take an MD5 sum of the incoming message (minus headers and 
> whitespace), and then reject if it matches an existing MD5 sum (for just 
> that list?) in the last X minutes/days.

Right.


> This seems an interesting idea, though I'd probably use a table in the 
> database to hold the checksums, and have some periodic pruning job to kill 
> off expired ones.
> I think the best way to implement this would be via a custom send scenario 
> with a custom test function.  The test function could take care of 
> computing the MD5, and adding it to the database if necessary.  The benefit 
> of using a custom scenario check function is that it doesnt require 
> modification of the main Sympa code, just a new module in the Perl library.
> I started to use a similar way to implement a posting-rate-limiting custom 
> scenario test, though I never finished it.

For now we have solved ''wrapping'' old procmail code around a wrapper to
sympa 'queue' binary. A crude hack, but work.

Interesting the scenario, we will investigate...

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  Le parti si impegnano [...] ad astenersi nelle relazioni internazionali
  dalla minaccia o dall'uso della forza in ogni modo in contrasto con
  gli scopi delle Nazioni Unite.                (art.1 Trattato NATO)