Lars Hecking <[EMAIL PROTECTED]> wrote on Wed, 27 Oct 1999:
>  While this recipe is on the procmailex man page, a recipe to
>  save duplicates into a different folder is a lot safer (like
>  the one further down in procmailex(5)).

There's also some specialised scripts/programs (made with perl) that
use better checking than just the Message-IDs for detecting duplicates
(md5 hash, etc.).  I remember seeing links to a couple of these on the
Qmail home page, but they probably wouldn't work without modification
on non-qmail systems.

>  Consider the case when mail delivery is interrupted after
>  the duplicate recipe, but before mailbox delivery. On next delivery,
>  the message is silently discarded although it was never delivered.

Or the case when all mail somehow ends up in the main inbox, unfiltered,
and you think "oh I'll just fix the .procmailrc recipes and run procmail
on all messages in my inbox to get them all sorted into proper folders",
forgetting about the duplicate filter rule.


Mikko,
who has once lost all of his inbox contents this way
-- 
// Mikko Hänninen, aka. Wizzu  //  [EMAIL PROTECTED]  //  http://www.iki.fi/wiz/
// The Corrs list maintainer  //   net.freak  //   DALnet IRC operator /
// Interests: roleplaying, Linux, the Net, fantasy & scifi, the Corrs /
Of all the things I've lost, I miss my mind the most.

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