[ale] OT: the Penny Black anti-spam proposal

[Jim Philips]

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Microsoft is proposing a technical approach to slow down spam. There would be 
a processing hit on the sender side that could hinder spammers. But for the 
approach to work, it would have to be an open standard (otherwise Linux users 
could spam at will). See more at:

http://news.bbc.co.uk/2/hi/technology/3324883.stm

I'm curious to know what others think of this approach...based on its merits, 
not its source.
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