Re: [Asrg] RMX and aliases

[Hadmut Danisch <hadmut@danisch.de>]

On Tue, May 06, 2003 at 04:40:28PM -0400, bukys@cs.rochester.edu wrote:

> Isn't this a serious impediment at least short-term?


I have addressed this in my draft. You have to distinguish 
between trusted and untrusted forwarding.


Those common methods of .forward mechanisms without sender rewriting
(in untrusted environment) can't be accepted any longer.

If you permit everybody to forward everything with any given 
sender address, then there is no technical difference between 
forging and forwarding. If you insist on allowing any machines to 
forward without sender rewriting, then every spammer can pretend 
to be a forwarder for the given spam message.

Hadmut

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