I doubt there's a single spam in my Junk folder that doesn't break at 
least one existing law.
This is true.  The problem is identification of the mail source.

Most of the spam being sent now is via hacked home computers. If the end 
user can send mail, so can the spammer that has administrator access to

Hmmm.  I thought the vast majority is coming out of Russia and China these days.  But I would imagine that heaps of end users have spam relays and don't know it.  Of course with SPF and the like this would be avoided.  The end users don't have the right IP or DNS entries to get past SPF or similarly configured mail servers.

improve the general security of home computers. This would force the 
spammers back to using the much smaller set of mailservers that they 
actually OWN, and deny them the resources that they currently have for 
DoSing blacklist servers and anti-spam sites.

Improving end user security isn't going to happen overnight with Windows as entrenched as it is and it is also too far out on the edge of the network.  Better to attack the problem at the mail server rather than be concerned with end user systems.

Regards 




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Oliver Jones » Director » oliver.jones@deeperdesign.com » +64 (21) 41 2238 

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