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Date:      Sat, 25 Sep 1999 11:41:39 -0500
From:      Jacques Vidrine <n@nectar.com>
To:        "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>
Cc:        chat@FreeBSD.ORG
Subject:   Re: Filtering port 25
Message-ID:  <19990925164139.6B93DBE08@gw.nectar.com>
In-Reply-To: <199909251604.JAA07646@gndrsh.dnsmgr.net> 
References:  <199909251604.JAA07646@gndrsh.dnsmgr.net>

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On 25 September 1999 at 9:04, "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> wrote:
> > At 07:35 PM 9/24/99 -0500, Jacques Vidrine wrote:
> > 
> > >I am not advocating making it easy for spammers.  The RBL has been a
> > >huge help, and the DUL looks potentially even more helpful.  I just
> > >object to blocking legitimate traffic.
> 
> Lets see here, the DUL effectively _blocks_ port 25 connections at
> the _destination_ point of the connection. 

The DUL is an opt-in, however, and not ubiquitous.  A corporate 
office may use the DUL, but make exceptions as necessary for its roaming
users.

> All we are doing is moving the filter point from the receipent point
> to the closest we can get to the transmission point.  Further more,
> since not everyone is running the DUL, we are insuring that the
> policy we want in place is being enforced to the best of our
> ability. Jacques said DUL okay, but me filtering at the source not
> okay.  He is in self conflict.  Please examine internal operations
> and diagnose :-)

DUL is opt-in.  Filtering is draconian.  They are quite different.

Jacques Vidrine / n@nectar.com / nectar@FreeBSD.org


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