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Re: e2e

2007-08-16 07:46:12
In theory that isn't much of a problem. In fact you could even keep
SMTP for the transport and RFC822 for the message format.

Only accept incomming SMTP from hosts/networks you trust and/or have
some kind of formal agreement with. X.400 did roughly (exactly) that,
although it used a different transport. Ever heard of X.400 Spam :-)?

In practice it's of course less simple, since you will miss the baby
that went out with the water. And, noone will be prepared to pay the
cost of sending mail through such a regulated system. As is, we pay
via the time spent with the <Delete> button. Sorry, no free lunch.

        Gunnar Lindberg

From ietf-bounces(_at_)ietf(_dot_)org  Thu Aug 16 00:13:07 2007
In-Reply-To: <46C36599(_dot_)9040907(_at_)cisco(_dot_)com>
References: 
<198A730C2044DE4A96749D13E167AD3701341995(_at_)MOU1WNEXMB04(_dot_)vcorp(_dot_)ad(_dot_)vrsn(_dot_)com>
    <8244E3BE-1A26-4B0A-99DC-0DF7AF7F8810(_at_)cisco(_dot_)com>     
<46C29647(_dot_)5070202(_at_)qualcomm(_dot_)com>        
<FABD8E3A-D5CF-4EED-927B-A039BCAEE90C(_at_)cisco(_dot_)com>
      <46C36461(_dot_)2060907(_at_)cs(_dot_)utk(_dot_)edu> 
<46C36599(_dot_)9040907(_at_)cisco(_dot_)com>
Message-Id: <16091B83-0AB3-41A5-A6E4-D8868B61FA30(_at_)muada(_dot_)com>
From: Iljitsch van Beijnum <iljitsch(_at_)muada(_dot_)com>
Date: Thu, 16 Aug 2007 00:11:13 +0200
To: Michael Thomas <mat(_at_)cisco(_dot_)com>
Cc: John Kristoff <jtk(_at_)northwestern(_dot_)edu>, Keith Moore 
<moore(_at_)cs(_dot_)utk(_dot_)edu>,
       Fred Baker <fred(_at_)cisco(_dot_)com>, ietf(_at_)ietf(_dot_)org
Subject: Re: e2e

On 15-aug-2007, at 22:44, Michael Thomas wrote:

Robust for what? Spammers? The simple fact of the matter is that the
alternative is to just shut down port 25 given the growth in both  
volume
and complexity to filter.  That ain't robust either. Dealing with  
false
positives is the cost of doing business on the internet these days.  
Welcome
to reality.

That means giving up on email because it's not useful if it's not  
very close to universal.

If only there were a standards organization that could design a  
messaging protocol that can work across the internet...


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