[Dovecot] duplicates with multiple To/CC and sieve redirect copy

Charles Marcus CMarcus at Media-Brokers.com
Mon Feb 27 14:25:36 EET 2012

On 2012-02-22 8:15 PM, Stephan Bosch <stephan at rename-it.nl> wrote:
> * I've just created an alternative that implements something similar to
> the Procmail code you posted above, but from within Sieve itself. It is
> a custom language extension called vnd.dovecot.duplicate and it adds the
> "duplicate" test. This test keeps track of which Message-IDs it has seen
> before in earlier deliveries and yields a true result if the message was
> seen before, e.g.:
> require "vnd.dovecot.duplicate";
> if duplicate {
>      discard;
> }

Interesting... I'll have to look into this later to see how it might be 
leveraged only for deduplicating mailing list messages (suppress 
duplicate messages when someone is a member of multiple lists that are 
members of other lists - I use mailman currently).


Best regards,


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