Will certified e-mail stop spam? (was: unsubscribing... etc)

[Peter]

An example of what can happen when 'nobody cares' about a 'slight 
misconfiguration':

http://www.theregister.co.uk/2006/04/13/d-link_time_row_escelates/

Okay, this time it's a manufacturer. Next time, it's a software update 
that causes Xx10^4 computers to do an effective DDNS on an unsuspecting 
free service. Who pays for that ? Okay, this is not email, but it 
clearly illustrates the problem.

Peter

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