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[sieve] Duplicate test

Stephan Bosch <stephan@rename-it.nl> Mon, 14 January 2013 12:24 UTC

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Date: Mon, 14 Jan 2013 13:23:35 +0100
From: Stephan Bosch <stephan@rename-it.nl>
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Subject: [sieve] Duplicate test
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Hi,

A while back I built a non-standard Sieve extension for detecting 
duplicate message deliveries, e.g. as seen when people cross-post over 
multiple mailing lists. This functionality is very similar to what could 
be achieved with Procmail using formail -D. Someone requested this at 
some point and in a moment of boredom I built the initial 
implementation. Last year I extended it a bit and I made it more 
generic. I never intended for this to be standardized, but - now that I 
look at it again - I think this may yet be of some interest to other 
Sieve implementers as well.

I make a habit of documenting my custom Sieve extensions in a familiar 
RFC-like manner:

http://hg.rename-it.nl/dovecot-2.1-pigeonhole/raw-file/tip/doc/rfc/spec-bosch-sieve-duplicate.txt

What do you think? Would you be interested in having functionality like 
this standardized? Should I submit this as a draft?

Regards,

Stephan.

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