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Re: dynamic ip: cold hard facts

To: qmail list <qmail@list.cr.yp.to>
Subject: Re: dynamic ip: cold hard facts
From: Sami Farin <safari-qmail@safari.iki.fi>
Date: Wed, 31 Jan 2007 22:02:52 +0200
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On Wed, Jan 31, 2007 at 10:48:53 -0600, Charles Cazabon wrote:
> Sami Farin <safari-qmail@safari.iki.fi> wrote:
> > On Wed, Jan 31, 2007 at 09:36:59 -0600, Charles Cazabon wrote:
> > ...
> > >   -blocking mail based on the client being dynamically addressed blocks
> > >   legitimate mail
> > 
> > Sure... What's the ratio?  1:100000 (ham:spam)?
> 
> I don't know, because I don't have statistics on how much of my mail comes
> from dynamically-addressed hosts.  And if you block mail from
> dynamically-addressed hosts, *you don't know either*.

What, you mean I can't read the logs?

> The people who seem most sure that this doesn't block "much" legitimate mail
> appear to be exactly those people who can't know it, because they *are*
> blocking mail with this technique.

Indeed.  Loads and loads of unwanted mail.

If the mails were "legitimate", they would have contacted the management.

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