Re: e2e

[Gunnar Lindberg <lindberg at cdg.chalmers.se>]

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