[Dovecot] Duplicate supression mechanism

Daniel Parthey daniel.parthey at informatik.tu-chemnitz.de
Mon Jan 28 05:48:55 EET 2013


Timo Sirainen wrote:
> On 18.1.2013, at 17.36, 3.listas at adminlinux.com.br <listas at adminlinux.com.br> wrote:
> 
> > In a Dovecot 2.0.6 server I have an account x at domain and an alias
> > y at domain -> x at domain.
> > 
> > When I send an email to x at domain with carbon copy to y at domain, X
> > receives two messages on mailbox. Dovecot2 has any feature of duplicate
> > suppression ?
> 
> With v2.1 + Pigeonhole 0.3.1+ you can use vnd.dovecot.duplicate extension.
> 
> http://www.ietf.org/id/draft-bosch-sieve-duplicate-00.txt

Dovecot 2.1.10 and Pigeonhole 0.3.3 with the following SIEVE rules

require ["duplicate", "fileinto", "mailbox", "regex","vacation","variables"];

if duplicate {
  fileinto :create "Trash/Duplicate";
}

results in .dovecot.sieve.log Error:

sieve: info: started log at Jan 28 04:44:17.
main script: line 3: error: require command: unknown Sieve capability `duplicate'.
main script: line 5: error: unknown test 'duplicate' (only reported once at first occurence).
main script: error: validation failed.

What is wrong?

Regards
Daniel
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