On Oct 30, 2011, at 2:19 PM, Dave CROCKER wrote:

<snip ridiculousness>

> 
> Email travels over shared resources.  Spam consumes roughly %95 percent of 
> that shared path (comm lines and servers).  Receiving operators must devote 
> masses of resources to filter that firehose of mostly junk, in order to get 
> everyone's mailboxes to remain at least somewhat useful. Since the spammers 
> are well-organized and aggressive and often quite bright, they adapt their 
> attacks to get round these filters, thereby creating an extremely unstable 
> arms race. This means the entire situation is extremely unstable.  When -- 
> not if -- it breaks, mail becomes unusable.  That will be a common suffering.
> 
> The one-to-one cost or damage is probably also a reasonable perspective, but 
> it's /incremental/ to the shared cost.
> 
> d/
> -- 
> 
>  Dave Crocker
>  Brandenburg InternetWorking
>  bbiw.net
> 


So you support filtering end-user outbound SMTP sessions as this is a means to 
prevent misuse of the Commons*. Correct?

 - Brian

* I do not think of the Internet as a commons, but Dave does. I will not 
comment on this as it is tangential to the thread.

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