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Date:      Mon, 13 Sep 1999 23:34:40 -0400
From:      Kenn Martin <kmartin@infoteam.com>
To:        Peter Radcliffe <pir@pir.net>
Cc:        FreeBSD-stable@FreeBSD.ORG
Subject:   Re: "talk" appears broken!
Message-ID:  <19990913233440.A10404@infoteam.com>
In-Reply-To: <19990913231733.A21546@pir.net>
References:  <18089.937241568@axl.noc.iafrica.com> <003a01befe24$b8aa5140$0100a8c0@greg> <19990913223330.A9623@infoteam.com> <19990913231733.A21546@pir.net>

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On Mon, Sep 13, 1999 at 11:17:33PM -0400, Peter Radcliffe wrote:
> Kenn Martin <kmartin@infoteam.com> probably said:
> > Procmail is your friend ;-)
> > 
> >  ### remove duplicate messages
> >  ###
> >  :0 Wh: msgid.lock
> >  | formail -D 32768 $HOME/.tmp/msgid.cache
> 
> Not to drag the thread off sideways, but that method is a really
> bad plan. Messageids are not always unique (there are several M[UT]As
> that have been shown to not produce unique ids).
> 
> If you want to try and remove dups from mail (which isn't a good
> plan in general) you need to work on hashes of message contents or
> similar.

In theory, you are correct.  In practice, the above rule works wonders.

kenn



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